Specifications: 5 modes and 15 gear positions, meet the needs of different people. Use transcutaneous electrical stimulation to relieve muscle tension and achieve relaxation. 8 large massage areas to care for your health, suitable to relieve knee, shoulder, neck, waist, thigh, calve, knee, feet. Rejuvenate in just 15 minutes. Lightweight and portable, enjoy massage anytime, anywhere. Type: Mini Massager Model: S900 Material: ABS Power Supply: USB Charge Rated Power: 0.15W Rated Voltage: 3.7V Output Power: 1Hz-100Hz Features: USB Rechargeable, Portable, Wide Massage Area, 3D Size: 11.8cm x 11.8cm x 1.8cm/4.65" x 4.65" x 0.71" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Main Machine 1 x Massage Patch 6 x Gel Pads 1 x 1m USB Cable for Android 1 x User Manual