Enhanced audio & bass response(high quality sound and enhanced bass effect, a top-rate audio experience) Compatibility: works with Android and other Bluetooth enabled devices. Patent of appearance design The design of TWS is flexible and portability. The box can charge for Bluetooth earbuds. Features details: Display headphone's battery on the iPhone, Android and other Bluetooth enabled devices. Pause the music & play back automatically when receiving an incoming call. Automatically connect to the last connected Bluetooth device Vibration reminding when phone call comes in. Echo reduction and Siri function support. Safe driving, call clarity. It is your best choice for driving, running, hiking or other outdoor sports. Function button(simple and easy operation): Power on/off Play/Pause track Next song Answer/drop calls Dial the last call from your call records Packing detail: Box size: 14.2cm*9.5cm*4.5cm Weight: 0.006Kg Pcs/ctn: 60pcs