H3 active noise canceling wireless headset

1. BT version: 5.4 2. Battery capacity: 500mAh; charging time: 2.5 hours 3. Usage time: Music time: 55 hours (45 hours in ANC mode); talk time: 40 hours 4. Noise reduction depth: -30dB 5. Size: 177*78*200mm; weight: 221g