Wireless Bluetooth Streaming - Stream music wirelessly via Bluetooth to enjoy room-filling sound. Connect up to 3 smart devices at the same time and take turns playing music.</br>Rechargeable Battery - Built-in rechargeable Li-ion battery supports up to 10 hours of playtime.</br>Built-in Microphone - Harman noise and echo cancelling technology delivers crystal clear conference calls.</br>Dimensions - 145 x 158 x 95 mm.</br></br>Product Description</br></br>Crafted from premium materials?? the Onyx Mini is a full-featured?? portable Bluetooth speaker that delivers signature Harman Kardon sound