1. Stylish and simple appearance 2. Bluetooth 5.0 version has no delay, low power consumption and stable signal 3. Small size, light weight, can be carried with you 4. Support all Bluetooth-enabled devices and mobile phones Product parameters: 1. Bluetooth version: 5.0 2. Talk: 2.5-3 hours 3. Listening to songs: 2.5-3 hours 4. Bluetooth distance: 10-15 meters 5. Binaural charging cycle: 4-5 times 6. Charging in the charging compartment: about 1 hour 7. Headphone battery power: 30 mA 8. Rechargeable battery capacity: 250 mA 9. Speaker configuration: high-profile true copper ring speaker 10. Weight: about 95g 11. Size: about 10*10*3.5cm Instructions: 1. Turn on the left and right ears at the same time, and both earphones are automatically paired 2. Automatically shut down when charging in the charging compartment 3. Answer the call: tap the leftright channel once 4. Hang up the call: tap the leftright channel once 5. Reject the call: long press the leftright channel for 2 seconds 6. Pause the song: tap the leftright channel once 7. Up and down song: 3 taps on the leftright channel 8 Adjust the volume: tap the leftright channel twice 9. Call Siri: Long press the leftright channel for 3 seconds (On the charger, press the headset once to charge, then press the headset again to not charge, the headset will be manually turned on and paired successfully, the window will pop up)