This mini speaker is small, but delivers crystal-clear sound with impressive bass and room-filling loudness from high-performance drivers and sub-professionals. Built-in microphone, one-key to answer (or double-press to reject), 10 meters stable connection. Compatible with camera apps (apps that can use the volume keys to take pictures can be supported) Turn on the camera function of the mobile phone connected to Bluetooth, and press the play button in the middle of the Bluetooth speaker to complete the camera operation. Built-in 900mAh Li-polymer battery guarantees 8 hours of playback time. The indicator light is designed to be hidden inside the arm of the robot, and the arm can swing. The built-in MIC is located at the back and the mic hole cannot be seen directly from the front. It does not affect the call, but also maintains the appearance. It's perfect for the outdoors, hiking, beach, dorm room, kitchen, bathroom, boat, golf cart, and more. Power Input: Micro USB Rated Capacity: 900mAh(MAX) Rated Voltage: 5V600mA Rated Power: 2W Charging Time: 2 hours Working Hours: 8-9hours Bluetooth Version: 5.0 Color: White, Silver Gray, Orange(optional) Size: 74 x 51 x 50cm Weight: 300g Package List: 1 x Robot Bluetooth Speaker