Red Battery Capacity: 1200mAh Shipping Contents: 1 x Bluetooth Speaker 1 x Audio Cable 1 x Charging Cable 1 x Instruction Manual Bluetooth V5.0: Using a powerful Bluetooth 5.0 smart chip, the connection is simple, fast and stable. Compatible with mainstream devices, Bluetooth speakers are compatible with mainstream mobile phones, tablets, notebooks and other smart devices on the market, with a connection distance of 10m. Stereoscopic effect: 57mm with bass diaphragm, stronger stereoscopic effect, enjoy 3D sound experience. Corresponding to the speakers of the dual-speaker mode, it is easy to create stereo sound. Multiple game modes: Support Bluetooth playback, card/U disk, AUX playback and FM playback modes, match the rhythm of different scenes, and enjoy wonderful music anytime, anywhere. High-definition hands-free function: no stutter, built-in intelligent noise-cancelling microphone, no delay, no stutter, clear and true voice, hands-free one-key hands-free.