Wireless TENS EMS Muscle Stimulator: Dual-Channel, 19-Level Pain Relief for Clinics & Rehab Suppliers

Wearable Round Mini TENS Massager

Product Overview

The SM9125A is a mini wireless dual-channel TENS electrotherapy massager designed for pain relief, body relaxation and fatigue recovery. It supports 8 modes, 19 intensity levels, dual-output connection, Type-C charging, green LED intensity display and a 20-minute fixed timer with load detection, making it suitable for use on the neck, shoulders, back, waist, arms, legs and joints. OEM/ODM customization is available for B2B projects.

Attribute	Specification
Product Name	Mini Wireless TENS
Model No.	SM9125A
Application	Neck, shoulders, back, waist, arms, legs and joints
Main Function	Pain relief, body relaxation and fatigue recovery
Channels	Dual Channels / Dual Output
Channel Control	Shared mode and intensity control for both channels
Modes	8 Modes
Intensity Levels	19 Intensity Levels
Timer	20-Minute Fixed Timer
Control Method	Button Control
Display	Green LED Indicator Lights with Intensity Display
Battery Capacity	3.7V / 110mAh
Charging Port	Type-C USB
Charging Time	About 2 Hours
Pulse Frequency	3–76Hz ±10%
Pulse Width	200μs ±10%
Load Detection	Supported, output cannot increase without load and returns to 0 when load is disconnected
Customization	OEM/ODM customization available

Experience targeted pain relief and muscle relaxation in the palm of your hand with our ultra-compact Round Mini TENS Massager. Designed for ultimate discretion and portability, this sleek circular device is engineered to seamlessly integrate into your daily routine. Whether you are battling desk-induced shoulder tension, post-workout muscle fatigue, or chronic joint aches, this lightweight Round Mini TENS Massager delivers clinic-quality electrotherapy directly to the source of your discomfort. Its minimalist, pocket-sized form factor ensures that powerful, drug-free pain management is always within your reach, no matter where life takes you.

Despite its exceptionally slim 12.5mm profile, this robust Round Mini TENS Massager boasts a highly capable single-channel

The Wearable Round Mini TENS Massager is developed to provide a convenient, discreet, and efficient solution for users seeking everyday pain management and muscle relaxation support. Combining compact industrial design with advanced TENS stimulation technology, this device delivers professional-level electrotherapy functions in a lightweight wearable format that fits naturally into modern lifestyles.

Unlike traditional wired TENS machines that require complicated connections and large controllers, this Round Mini TENS Massager eliminates unnecessary accessories through its integrated circular structure and wireless electrode connection design. Users can quickly attach the device to the target area and enjoy a simple, comfortable stimulation experience during daily activities. Its compact size makes it especially suitable for users who need portable pain relief solutions while working, traveling, exercising, or relaxing at home.

The intelligent control system provides a balance between simplicity and functionality. With multiple massage modes and adjustable intensity levels, users can easily select suitable stimulation settings based on different body conditions and personal preferences. The LED ring interface offers clear visual feedback while maintaining the product’s minimalist appearance, creating an intuitive interaction experience without complex screens or menus.

Designed with energy efficiency and reliability in mind, the Round Mini TENS Massager integrates a rechargeable lithium battery, Type-C charging system, and intelligent power management technology. These features improve convenience while supporting repeated daily use. The built-in safety protection system further enhances user confidence by monitoring skin contact, preventing unexpected output, and automatically managing power consumption.

For global wellness brands, healthcare distributors, rehabilitation product suppliers, and private label companies, the Wearable Round Mini TENS Massager provides excellent market opportunities. OEM and ODM customization options are available, including logo printing, housing color customization, packaging design, product accessories, and branding solutions.

With its ultra-portable structure, intelligent TENS technology, user-friendly operation, and reliable performance, this Round Mini TENS Massager is an ideal product for expanding personal wellness, pain management, and wearable healthcare product portfolios.

Key Advantages & Features

1. Ultra-Slim 12.5mm Circular Design

Engineered with portability as the primary focus, this Round Mini TENS Massager boasts an updated, exceptionally thin 12.5mm host profile. Its sleek, circular chassis is designed to lay flat against the body when snapped onto an electrode patch, remaining virtually invisible under standard clothing. Operating through dual 10mm output snaps, this Round Mini TENS Massager offers a robust, wire-free connection, giving you the freedom to move, work, or relax without interference.

2. 8 Therapeutic Modes & 19 Intensity Levels

Despite its minimalist footprint, this powerful Round Mini TENS Massager provides a comprehensive physical therapy experience. It features 8 distinct massage modes to tackle various forms of muscular fatigue and tension. With a simple click of the physical buttons, users can navigate through 19 precise intensity levels per mode. This wide adjustable range ensures that the Round Mini TENS Massager can deliver everything from a gentle, soothing pulse for sensitive areas to a deep, rigorous stimulation for stubborn muscle knots.

3. Intuitive Green LED Ring Interface

Say goodbye to complicated menus. This smart Round Mini TENS Massager utilizes a highly intuitive green LED indicator ring for effortless operation. During normal use, the outer LED ring remains steadily lit in a clockwise sequence (1 through 8) to clearly display your current active mode. When adjusting the power, the interface dynamically responds to show your current intensity. Furthermore, while charging, the LEDs on the Round Mini TENS Massager illuminate in a fluid, sequential motion, remaining fully lit once the battery reaches 100%.

4. Smart Load-Detection & Auto-Shutoff Safety

Consistent with top-tier medical devices, this Round Mini TENS Massager integrates essential safety protocols. A built-in load-detection algorithm actively monitors skin contact. If the electrode pad disconnects while the device is active, the active mode light will flash, and the intensity will immediately drop to level zero, preventing any sudden shocks upon reapplication. If the Round Mini TENS Massager detects no load and no user operation for 2 continuous minutes, it automatically powers down to conserve energy.

5. Efficient Type-C Charging & Low-Drain Battery

Never compromise on power. This pocket-sized Round Mini TENS Massager is driven by a built-in 3.7V / 110mAh rechargeable lithium battery, easily replenished via a modern Type-C USB interface in just 2 hours. A dedicated charging management IC safely regulates the input current (max 0.14A) and strictly disables the device from operating while plugged in. Designed for long-term reliability, the Round Mini TENS Massager features an ultra-low static standby current of less than 30uA, ensuring it holds its charge perfectly during extended storage.

Technical Specifications

Parameter Items Official Product Specifications (RL-125A-8A1)

Product Name Wearable Round Mini TENS Massager

Model Number RL-125A-8A1 (V1.1)

Form Factor 12.5mm Ultra-Slim Circular Host

Output Interface Single Channel, Dual Output (2x 10mm Snaps)

Display Interface Green LED Ring (Clockwise Mode/Intensity Indication)

Massage Modes 8 Intelligent Modes

Intensity Levels 19 Adjustable Levels (Defaults to Level 0 upon mode switch)

Battery Specification 3.7V / 110mAh Rechargeable Lithium Battery (041230)

Charging Interface Type-C USB (DC 5V Input)

Charging Details Approx. 2 Hours (Max 0.14A, locked from operating during charge)