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 with multiple playback modes,Independent multi-function buttons, more convenient operation Built-in noise reduction microphone, intelligent noise reduction, one-button high-definition hands-free answering, the call is not stuck, clear and no noise Built-in 2000mAh rechargeable lithium battery, charging for 2-3 hours can listen to about 18 hours Product Description: Parameters: Bluetooth: 5.0 Output power: 5W Service time: about 18 hours Signal to noise ratio: 85dB Battery capacity: 2000mAh Distortion: