About this item ✅【Built-in 2000mAh rechargeable lithium battery】Charging for 2-3 hours can listen to about 18 hours. ✅【Built-in dual alarm clock function】You can set 2 alarm clocks at the same time to give you more care. ✅【Stereo structure with omnidirectional sound effects】Covering every corner, making it immersive. ✅【Upgraded Bluetooth 5.0 chip】High-speed transmission, low power consumption, stable and continuous connection, no lag. ✅【Support playback and Bluetooth playback】Multiple playback modes,Independent multi-function buttons, more convenient operation.