1. HIFI stereo intelligent noise reduction listening 2. Mini size is convenient to carry when going out 3. Mirror alarm clock speaker 4. Bluetooth 5.0 stable connection, no delay in audio transmission 5. Speaker: Full-range speaker 50mm, 4 Ohm 6. Battery capacity: 1500mAh 7. Battery life: about 6 hours 8. Bluetooth solution: AB6921 9. Support Bluetooth calling