Automatic connection: Pick up the earphone for the automatic power on, double earphone are automatically pair, turn on the phone to connect directly, no need to manually pair, easy to operate. Can be connected to two mobile phones at the same time. Long battery life: Using the latest technology of low-power chips, earphones can be used continuously for more than 3 hours. With a 280mah large capacity charging box, the music is uninterrupted. Mini compact: Invisible mini ultra-small body, wearing as small as an elf, hidden in the ear, painless feeling for a long time wear. Adaptive noise reduction: Binaural sound, support for call function, adaptive noise reduction technology, providing high-definition call experience. True wireless bluetooth headset, left and right channel seperation, Automatically connected, both ear can be used seperately. Intelligent compatibility: support all Bluetooth mobile phone, tablet, notebook, QQ music, movies, etc., universal all mobile phone.