•Bluetooth-compatible 5.3, compatible with all Bluetooth-compatible devices. Built-in call microphone for easy answering/making calls •High-power, dual-channel speakers allow you to hear more clearly •Provide built-in stereo and 360-degree stereo •With TWS function, two speakers can be connected to synchronize with the mobile phone •Simple button control, you can turn on/off, play/pause, switch modes, skip songs, adjust volume, etc. by pressing buttons •Support MP3, WMA, WAV, FLAC, APE format music files •Support TF card, support USB 2.0 disk •Built-in 1200mAh battery, long battery life Specification: •BT version: V5.3 •BT range: 10m •Speaker size: 52mm •Output power: 4ohm/5Wx1 •S/N: >=90dB •Frequency range: 100Hz-20KHz •Battery capacity: 1200mAh •Normal volume playback: 4 hours •Charging time: 3-4 hours •Size: 74x74x92.5mm Package included: •1 x Bluetooth-compatible Speaker •1 x USB Charging Cable •1 x English and Chinese User Manual