1. Bluetooth V5.0: It uses a powerful bluetooth 5.0 smart chip to make the connection easy, fast and stable.compatible with mainstream devices, bluetooth speakers are compatible with mainstream cell phones, tablets, notebooks and other smart ones Devices on the market, 10m connection distance. 2. Three-dimensional stereo effect: 57mm with bass diaphragm, the stereo effect is stronger, so you can enjoy the 3D sound experience.The speaker with corresponding mode dual speaker, makes it easy to make stereo sound Create effect. 3. Multiple game modes: Support bluetooth playback, card / USB flash drive, AUX playback and FM playback mode, match the rhythm of different scenes, enjoy wonderful music anytime anywhere. 4. High-definition hands-free function: No stuttering, built-in intelligent noise canceling microphone, no delay, no stuttering, clear and true voice, hands free One-touch speakerphone. 5. Good performance: Built-in 1200mAh large capacity core, medium volume playback time 5-8 hours, continuous listening to music 8 hours, 150 songs, charging time 2 hours.Built in noise-canceling microphone, it can ensure high-definition Hands-free calling without box.