TENS
Transcutaneous Electrical Nerve Stimulation. Electrical pulses delivered through pads for the device’s specified temporary pain-relief indications. Do not imply treatment of diseases, sciatica or all kinds of pain.
Model FM-B2403A
Electrical Muscle Stimulator
Portable rechargeable electrical stimulation device with TENS, EMS, Massage and DIY functions, adjustable intensity and backlit LCD display.
$179.00 USD
One-time purchase · No subscription
In stock — ready to ship
Overview
The FM-B2403A is a compact, rechargeable electrical stimulation device combining TENS, EMS, Massage and DIY operating modes. Adhesive electrode pads deliver electrical stimulation through the skin. A backlit LCD presents key settings; separate channel controls allow adjustment of intensity, and the device charges by USB Type-C. Use only as instructed by the manufacturer, and only for the device’s cleared intended uses.
Key features
- Four function categories: TENS, EMS, Massage, and DIY
- Supplier-reported 25 stimulation programs (numbering pending device verification)
- Separate CH1 and CH2 intensity controls shown on the unit; channel-count claims pending reconciliation with regulatory documentation
- Up to 30 intensity settings per channel (supplier-reported; confirm on production unit)
- Backlit LCD with physical-button operation
- USB Type-C rechargeable lithium battery (capacity omitted until reconciled)
- Session timer 10–90 minutes (supplier-reported; follow approved manual)
Four operating functions
EMS
Electrical Muscle Stimulation. Stimulation of healthy muscles to improve or facilitate muscle performance within cleared indications; do not promise rehabilitation or clinical treatment outcomes.
Massage
Preset stimulation patterns designed to create massage-like sensations.
DIY
Customizable stimulation settings. Supplier describes adjustable pulse rate; exact adjustment ranges and controls are matched to the final FM-B2403A manual when available.
Technical specifications
Supplier-reported values are labeled where verification is still required. Conflicting figures (battery capacity, working current, IP rating) are omitted until reconciled.
| Model | FM-B2403A |
|---|---|
| Functions | TENS, EMS, Massage, DIY |
| Programs | 25 (supplier-reported; numbering pending verification) |
| Channel controls | CH1 / CH2 intensity controls (full output-channel count pending regulatory reconciliation) |
| Intensity | Up to 30 settings per channel (supplier-reported) |
| Pulse frequency | 1–199 Hz (supplier-reported; verify) |
| Pulse width | 60–240 μs (supplier-reported; verify) |
| Pulse amplitude | 0–120 Vpp (supplier-reported; verify) |
| Timer | 10–90 minutes (supplier-reported; verify) |
| Display | Backlit LCD; button operation |
| Battery | Rechargeable 3.7 V lithium (capacity omitted until reconciled) |
| Charging | USB Type-C |
| Approx. size | 10.2 × 6.3 × 2.5 cm (supplier-reported) |
What’s in the Box
Complete stimulation kit / Everything you need to get started.
- 1 × FM-B2403A main device
- 4 × electrode pads Medium
- 2 × electrode pads Large
- 2 × electrode lead cables
- 1 × USB charging cable
- 1 × printed manual
Device & Regulatory Details
Key information and compliance.
- Manufacturer
- Shenzhen Jian Feng Electronic Technology Co., Ltd.
- Model
- FM-B2403A
- FDA 510(k) number
- K213741
- FDA decision date
- March 8, 2022
Safety & intended use
- Read the complete manufacturer instructions and warnings before using the device.
- Do not use with pacemakers, implanted defibrillators or other implanted electronic devices unless the approved labeling expressly allows it.
- Do not position pads to send current across the chest or on the front of the neck; follow the complete authorized placement rules.
- Do not apply to injured, infected or irritated skin; stop for unexpected pain or significant irritation.
- Do not use while driving, sleeping or operating machinery.
- Pregnancy, epilepsy, cardiac problems and other conditions require review of approved contraindications and appropriate clinical advice.
- Keep out of reach of children except as specifically instructed by approved labeling.
Shipping, Returns & Warranty
Free standard shipping on eligible United States orders; no international shipping. Orders are fulfilled by our Ohio-based fulfillment partner and typically processed within 1–2 business days (Monday–Friday, excluding federal holidays). Most contiguous U.S. orders ship using USPS Ground Advantage and typically spend 2–5 business days in carrier transit, for an estimated combined 3–7 business days. These are estimates, not guarantees. Tracking is emailed after dispatch.
Alaska, Hawaii, U.S. territories, military addresses, and PO-box eligibility will be stated exactly once checkout shipping zones are finalized. Contact us if a shipment is delayed, missing, or damaged. If we cannot ship within the promised timeframe, customers receive the legally required delay, cancellation, or refund options.
Request a return within 60 calendar days after delivery. Reasonable opening and testing is allowed. There is no restocking fee. For change-of-mind returns, the customer pays only return shipping; a prepaid tracked label may be offered with the actual label cost disclosed and approved in advance for deduction from the refund, or you may arrange tracked shipping yourself. Novixme covers authorized return shipping for damaged, defective, or incorrect items.
Return directions and the current return address are issued by support; the warehouse street address is not published. Refunds go to the original payment method and are generally initiated within 5 business days after the return is received and inspected. Card-provider posting time may take longer. Statutory consumer rights are not restricted.
The one-year limited warranty begins on the delivery date and covers qualifying manufacturing defects in the main electronic device under normal instructed use, including electronic controls, display, charging system, and internal component failures caused by manufacturing defects. Consumable adhesive electrode pads are excluded from the ongoing device warranty.
The warranty excludes misuse, accidents, unauthorized repair, and normal wear. Approved warranty shipping is seller-paid. Remedy may be repair, replacement with the same or an equivalent covered model, or an appropriate refund. State-law rights are preserved.
Frequently asked questions
What is the difference between TENS and EMS?
TENS provides electrical nerve stimulation for specified temporary pain-relief indications; EMS stimulates healthy muscles to improve or facilitate muscle performance. See intended use and the manufacturer manual.
Does this require a prescription?
The FDA clearance for the referenced filing describes over-the-counter use. The specific product and cleared labeling must match the shipped FM-B2403A.
What modes does it include?
TENS, EMS, Massage and DIY, with 25 programs advertised by the supplier pending device verification.
Can I adjust strength?
The supplier specifies 30 settings per independently controlled channel; start at low settings as instructed in the manual.
Can both channels run simultaneously?
The supplier describes simultaneous channel operation; specific supported configurations and permitted placement follow the manual.
How is it charged?
Built-in rechargeable battery via USB Type-C. A wall adapter is not listed as included.
Where can I position the pads?
Only where permitted in the official user manual. Promotional diagrams are not placement instructions.
Can I use it with an implanted medical device?
Do not use with implanted electronic devices unless expressly permitted by approved labeling and appropriately evaluated.
What arrives in the box?
Device, six pads, two lead cables and one USB charging cable.
When will it arrive?
Estimated 3–7 business days for most contiguous U.S. deliveries, including processing, subject to fulfillment and carrier conditions.
Can I return an opened device?
Yes, reasonable testing is allowed under the 60-day policy. Change-of-mind return label cost is customer-paid; there is no restocking fee.
What is covered by warranty?
Qualifying manufacturing defects in the electronic device for one year from delivery; disposable pads are excluded from the ongoing device warranty.
How do I request support?
Email [email protected] or call 1-800-562-4301.