With Bluetooth model, you can connect this CHUWI K8 microphone directly with your Android or iPhone wirelessly. The built-in 1000mAh large capacity battery can provide long using time for your need. Features With Bluetooth 4.0, CHUWI K8 has a wireless range of 10 meters. Compatible with smartphones, tablets, laptop computers and other devices with Bluetooth module. Suitable for different singing Apps and live video Apps, no need for drivers. Powerful MTE chip delivers high performance with 5.1 stereo sound effect. Built-in 1000mAh lithium polymer battery provides up to 6-8 hours long using time. Specification Brand CHIWU Model K8 Wireless Connection Bluetooth Suitable System Android, iOS, Windows, etc. Chip MTE Battery Capacity 1000mAh Playing Time 6-8 hours Product Length 21.9cm Product Weight 229g Package Contents 1 x CHUWI K8 Bluetooth Microphone