Truly Wireless Earbuds,TeckEpic X1T Bluetooth 4.2 Headphones Mini Headsets Noise-Cancelling Invisible Twins Stereo Earphones with Mic for iPhone,Samsung,Android Phone, all Bluetooth Enabled Devices 1.[Support by Wireless Split Technology] - Truly Wireless Earbuds having no wires, the left earphone can communicate the right earphone without any wire, the two earphones can be used simultaneously, also one of them can be used separately. 2.[With Bluetooth V4.2+ CSR Chip] - High quality sound give credit to Bluetooth CSR 4.2 technology, Built-in CVC 6.0 Noise Cancelling technology, and professional sound chamber design, from the phone to earphones, from the headphones to ears, or internal circuitry, every stage is always designed for perfect sound experience. 3.[Long Hour Usage] - Built-in 65mAh rechargeable lithium battery, it can support playing music for 2.5 hours with two earphones(for 5 hours with one earphone). The standby time can be 60 hours with two earphones (for 120 hours with one earphone). The battery can be fully recharged in an hour. 4.[Support all Android and iOS cellphones] - Easy to use technology with voice notification of incoming calls and phone numbers. Easy to use buttons allow Play/Pause on all your music tracks as well as all phone use without reaching your phone. 5.[Multi-Function Usage] - Optimized for extra comfort and fit better in ear earbuds, ease the problem of popping out. Soft material to protect ears, make your phone call and music time more comfortable. Sweatproof design is perfect for sports, running, jogging & gym exercise, watching TV or sleep.