Bluetooth 5.0, fast connection, stable signal, compatible with all Bluetooth-enabled devices ABS shell protects the speaker from water, dust and impact IPX5 waterproof, dustproof and shockproof 5W*1 high power, two bass partitions on each side, vibrate when playing music Cylindrical and built-in left and right channels provide 360 stereo 1200 mAh battery, when fully charged, 2/3 volume can play for 10 hours FM radio allows you to listen to the radio freely Support MP3, WMA, WAV, FLAC, APE format music files Support TF card, maximum support 32G(not include), support USB 2.0 disk Support U disk plug and play Support external MP3/MP4/computer audio input function (AUX) TWS function, you can connect two speakers to synchronize with a phone Simple button control, you can press the button to turn on/off, play/pause, switch modes, skip songs, adjust volume, etc. Specifications: Bluetooth specification: V5.0 Transmission range: 10M Battery capacity: 1200mAh Built-in voltage: 3.7V Playing time: about 2H Speaker size: 45MM*2 Speaker power: 5W*2 Charging input: 5V/500MA Single machine size: 67*68*172mm Single machine weight: about 363G Function: hand strap, Bluetooth, support FM radio, USB, TF card, AUX playback, call, TWS