BT037 Sports Stereo Wireless Bluetooth ANC Noise Reduction Headphones(Black)

1. Bluetooth 5.1 technology, easy and quick pairing with smartphones, tablets and other Bluetooth-enabled music devices.2. Wireless earphones, music Bluetooth earphones and sports earphones can reduce the radiation of mobile phones and release your hands to answer calls.3. Using our new high-definition noise reduction processor, the noise reduction capability is greatly enhanced.4. Supports both wireless and wired modes. For use as wired headphones, the audio cable plugs into the headphone jack. Convert from wireless to wired headphones in seconds.5. Specifications:- Bluetooth standard: V5.3- Effective range: 10 meters- Working hours (ANC): 10 hours- Operating time (without ANC turned on): 16 hours (volume at 50%)- Standby time: 200 hours- Rated power: 20mW-Battery capacity: 500mAh- Rechargeable: Type-C cable- Impedance: 32 ohms- Sensitivity: 105dB+/-3dB- Frequency response: 20Hz-20KHz- Driver unit: 40mmx2- Size: 18.7×15.5×7.5CM- Weight: 0.34kg