--- product_id: 681787207 title: "Transcutaneous Electrical Nerve Stimulator EMS Neck Massager with Heat" brand: "comfier" price: "฿8803" currency: THB in_stock: true reviews_count: 5 category: "Comfier" url: https://www.desertcart.co.th/products/681787207-transcutaneous-electrical-nerve-stimulator-ems-neck-massager-with-heat store_origin: TH region: Thailand --- # 15 intensity levels 1200mAh rechargeable battery 32-38°C therapeutic heat Transcutaneous Electrical Nerve Stimulator EMS Neck Massager with Heat **Brand:** comfier **Price:** ฿8803 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your neck care game — relief that travels with you! ## Quick Answers - **What is this?** Transcutaneous Electrical Nerve Stimulator EMS Neck Massager with Heat by comfier - **How much does it cost?** ฿8803 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/681787207-transcutaneous-electrical-nerve-stimulator-ems-neck-massager-with-heat) ## Best For - comfier enthusiasts ## Why This Product - Trusted comfier brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Pulse Control:** 15 adjustable intensity levels across 3 modes for tailored neck relief - • **Ergonomic U-Shape Design:** Fits necks 15"–21" for targeted, comfortable muscle stimulation - • **Portable & User-Friendly:** Compact, rechargeable, with intuitive controls for on-the-go relaxation - • **Soothing Therapeutic Heat:** Consistent warming up to 38°C to melt away tension in minutes - • **Medical-Grade Titanium Pads:** Durable, skin-friendly electrodes delivering effective TENS therapy ## Overview The COMFIER ST-304 EMS Neck Massager combines advanced TENS technology with customizable intensity and therapeutic heat (32°C-38°C) to provide targeted relief for neck muscle tension. Featuring medical-grade titanium electrodes and an ergonomic U-shaped design, it fits most neck sizes (15"–21") comfortably. Rechargeable with a 1200mAh battery and simple push-button controls, this compact device is perfect for busy professionals seeking portable, effective neck relaxation anytime. ## Description The subject device is intended to use on back of neck and it designed accord with human body cervical physiological curvature of streamlined ring design. It is a body-worn and home-use device. It uses low-frequency electronic therapy and designed to temporary relief of pain associated with sore and aching muscles in the back of neck. It only has one model: ST-304. The trade name of the subject device is Transcutaneous electrical nerve stimulator. The Transcutaneous electrical nerve stimulator (model: ST-304) consists of a main unit and Type C-USB charging cable. The main unit consists of shell, lithium battery (only 1pcs), neck electrodes pads (a pair of fixed neck electrodes pads), lower shell connector and control buttons and silicone pads. There are two fixed neck electrodes pads on the main unit. The material of neck electrodes pads is titanium material (Gr.2). There are only 1 pcs lithium battery in-build in main unit. The model of lithium battery is KRL 103040. The Transcutaneous electrical nerve stimulator (model: ST-304) power supply is 3.7V DC using built-in lithium battery(1200mAh). The built-in lithium battery can be recharged. But the power adapter (Input: 100-240V , 50/60Hz,0.7A, Output: 5V 1000mA) is not the parts of the subject device so it shall be supplied by the user. There are two fixed neck electrodes pads on the main unit. The material of neck electrodes pads is Titanium material (Gr.2). Review: This is my first TENS device. Some first impressions and thoughts after several uses. 1). The build quality is top-notch. It's well designed, and the body and the electrode pads seem to be good materials. 2). Compact and comfortable to wear. I used it in different settings - sitting in front of the computer, standing while preparing food, and moving around in the house. 3). The tingling feeling at first takes some getting used to. After that, I feel noticeable relief in my stiff neck. The TENS therapy seems to work by improving the circulation while stimulating the nerve and the muscles. 4). I'm still trying out the different modes, heat levels, and intensities. I wish there's small display on the remote to show simple mode selections and intensity level, so I can remember the best settings. 5). It's not a deep-tissue kneading massager. It uses nerve and muscle stimulation rather than physical pressure. It's less invasive but may not provide the direct and immediate hands-on feels. For me, I plan to use this TENS unit regularly like 5-10 minutes break after working long hours at my desk. Because it's portable and so easy to use. I can bring it with me to office or when I travel. I will use a Shiatsu massager only when my neck is really stiff and need deep muscle manipulation. Overall, it's a perfect TENS device for its purpose, easy to use, compact and portable, and effective for neck nerve and muscle relief. Review: Nice fit for an adult male. Heating feels good and gets fairly warm - all the heat I want. TENS stimulation is gentle and subtle, with many levels and seems to work nicely. Smaller unit than I thought it would be but fits and works well. Nice warranty and company support - it appears. Hopefully it will last. Well packaged and charging cable is included. Directions require some figuring out with language issues to some degree, but it is fairly easy to figure it all out. Not as expensive as many similar units. I am a happy camper. ## Features - This neck and shoulder relaxation device (Model ST-304) features three distinct operating modes, including two specialized massage programs with fifteen adjustable intensity levels each. The system delivers gentle electrical pulses through medical-grade titanium contact pads placed on the neck area to help relieve muscle tension and promote relaxation. - The integrated heating function provides consistent therapeutic warmth maintaining a temperature range between 32°C to 38°C (90°F to 100°F). This comforting heat becomes noticeable within approximately three minutes of use, reaching its maximum temperature in about ten minutes. The heating function can be operated independently or simultaneously with the massage programs for customized comfort. - The ergonomically designed neck pads deliver targeted massage and soothing warmth to the neck muscles. The main control unit allows users to easily adjust intensity levels, switch between massage modes, and turn the device or heating function on/off through simple push-button controls. - The intuitive control panel features four clearly labeled buttons: a power on/off switch, mode selection button, heating activation button, and separate intensity increase/decrease buttons. This straightforward interface ensures effortless operation for all users. - Designed specifically for temporary relief of muscle discomfort in the neck area, this device is ideal for addressing tension caused by daily activities, work-related strain, or exercise. It helps ease soreness and stiffness resulting from normal physical exertion. - Important Usage Note: This device uses low-frequency TENS electrical pulses for neck relaxation (not mechanical kneading). For best results and safety, please follow the included instructions, limit each session to 15 minutes, and stop use if you experience any discomfort. - Adjustable Fit for Most Neck Sizes：Ergonomic U-shaped design opens from 4.7″ to 6.7″ in diameter (fits approximately 15″–21″ neck circumference). Simply measure your neck before purchase and gently adjust the arms to ensure the pads make full contact for optimal comfort. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BWY1YLXS | | ASIN | B0BWY1YLXS | | Batteries | 1 Lithium Ion batteries required. (included) | | Best Sellers Rank | #79,636 in Health ( See Top 100 in Health ) #183 in Snap-On Neck Massagers | | Brand | COMFIER | | Customer Reviews | 3.8 3.8 out of 5 stars (357) | | Customer reviews | 3.8 3.8 out of 5 stars (357) | | Date First Available | 22 December 2023 | | Item model number | ST-304 | | Manufacturer | COMFIER | | Product Dimensions | 14.61 x 16.51 x 5.59 cm; 322 g | | Units | 1.00 Count | ## Product Details - **Brand:** COMFIER - **Colour:** White - **Material:** Stainless Steel Silicone - **Power source:** Battery Powered - **Use for:** Skin ## Images ![Transcutaneous Electrical Nerve Stimulator EMS Neck Massager with Heat - Image 1](https://m.media-amazon.com/images/I/7142N88KXLL.jpg) ## Questions & Answers **Q: How does it work?** A: This product adopts Low-frequency pulse,magnetic effect,hot moxibustion,highfrequency vibration,circular traction,five-inone synchronous health care to form a composite energy field. EMS massage **Q: What precautions should be taken during use?** A: Pease fully charge the device after receiving it. And charge this device one time per month if do not use for a long time. **Q: How to adapt to the EMS stimulation?** A: Apply some essential oil or moisturizer to the neck before use to reduce discomfort with EMS stimulation, especially on dry winter days. **Q: What is the product size?** A: 5.12×5.51×1.38 inch. It adopts ergonomic design,perfectly fit most people with regular neck sizes. **Q: How long does it take for fully charge?How many times can be use?** A: Buit-in Li-ion battery,Charging time is about 3 hours; It can be used in 5 hours only Pulse function, It can be used in 50 minutes if always turn on heating function together. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by L***. on 23 June 2025* This is my first TENS device. Some first impressions and thoughts after several uses. 1). The build quality is top-notch. It's well designed, and the body and the electrode pads seem to be good materials. 2). Compact and comfortable to wear. I used it in different settings - sitting in front of the computer, standing while preparing food, and moving around in the house. 3). The tingling feeling at first takes some getting used to. After that, I feel noticeable relief in my stiff neck. The TENS therapy seems to work by improving the circulation while stimulating the nerve and the muscles. 4). I'm still trying out the different modes, heat levels, and intensities. I wish there's small display on the remote to show simple mode selections and intensity level, so I can remember the best settings. 5). It's not a deep-tissue kneading massager. It uses nerve and muscle stimulation rather than physical pressure. It's less invasive but may not provide the direct and immediate hands-on feels. For me, I plan to use this TENS unit regularly like 5-10 minutes break after working long hours at my desk. Because it's portable and so easy to use. I can bring it with me to office or when I travel. I will use a Shiatsu massager only when my neck is really stiff and need deep muscle manipulation. Overall, it's a perfect TENS device for its purpose, easy to use, compact and portable, and effective for neck nerve and muscle relief. ### ⭐⭐⭐⭐⭐ Review *by B***G on 26 October 2025* Nice fit for an adult male. Heating feels good and gets fairly warm - all the heat I want. TENS stimulation is gentle and subtle, with many levels and seems to work nicely. Smaller unit than I thought it would be but fits and works well. Nice warranty and company support - it appears. Hopefully it will last. Well packaged and charging cable is included. Directions require some figuring out with language issues to some degree, but it is fairly easy to figure it all out. Not as expensive as many similar units. I am a happy camper. ### ⭐ Review *by L***R on 12 June 2024* My wife wanted me to try this device---early Papa's Day gift---and I quickly discovered that it was like a tens unit, without the sticky pads. My neck issue is not tired, sore muscles, it is neurological in nature (severe spinal stenosis that compresses my spinal cord, and impinges nerve roots in my right neck & shoulder), so this device is useless to alleviate my pain... Also, I have a fairly thick neck (the young lady in the pic on the device box has the neck of a gazelle, so, for her, it must be comfortable to use), and the side pads were compressing my carotids on both sides, making me feel woozy...when I tried to gently pull the device side pads apart to relieve the pressure, I inadvertently caused one of the contact pads to lose contact on the back of my neck---and it felt like I got tasered on my neck, the shock was so bad! And the same thing happened to my wife when she put it on---she shrieked when the pad lost contact on her neck!!! 😳⚡ SO...to say that this device is not for me/us is a mega-understatement...anyone looking to purchase any device like this one (or others), be advised that it is for MUSCULAR neck pain only---and for Pete's sake, do NOT adjust it on yer neck when the device is ON!!! Turn it OFF before you touch it!!! 🫣😱 ## Frequently Bought Together - COMFIER Transcutaneous Electrical Nerve Stimulator - AUVON Rechargeable TENS Unit Muscle Stimulator, 24 Modes 4th Gen TENS Machine with 8pcs 2"x2" Premium Electrode Pads for Pain Relief --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/681787207-transcutaneous-electrical-nerve-stimulator-ems-neck-massager-with-heat](https://www.desertcart.co.th/products/681787207-transcutaneous-electrical-nerve-stimulator-ems-neck-massager-with-heat) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*