Wireless Transcutaneous Electrical Nerve Stimulator (TENS) BP iMassager provides highly effective treatment for body pain. It is simple and easy to use. Provides quick and dependable pain relief at work and home. Features - Controlled through smart phone - Adjustable between 1 to 60 minutes, automatic timer. - Bluetooth transmission for iOS and Android - Apps : Dr. Stim How To Use? 1. Turn on Bluetooth. 2. Connect the device and gel pad. 3. Turn on the device and also the Dr. Stim apps on your phone. 4. Choose the TENS device model and connect by Bluetooth successfully. 5. Stick the pads on your treatment area. Do not apply it over broken skin. 6. Choose the program and massage mode. ** NOTE : DO NOT USE THE DEVICE WHEN CHARGING 24 Massage Modes - Every program, there will be 6 modes suggestion. Warranty - 1 year What's inside: - 1x BP imassager Bluetooth receptor - 2x imassager pads - 1x charger with USB extension line - 1x user manual