Shaza Air7 Noise Reduction Enc Bluetooth 5.3 Tws Headphone With 4 Microphones Black

SHAZA Air7 Noise Reduction ENC Bluetooth 5.3 TWS Earphone with 4 Microphones Black Depth, TWS wireless headphone, dual microphone ENC noise reduction BT v5.3 with Stable and secure Connection Chip: JL AC6973. Battery capacity: charging box 400mAh, headphone 35mAh. Usage time: 5 hours. Standby time: 180 hours. Dimensions: 54*51*26mm. Total weight: 43g. Dual microphone ENC noise reduction, clearer calls Automatic Pairing Master-Slave Connecting Technology BT Version V5.3 Headphone Charging Time 1.5 Hours Support Protocol HeadSet Hand Free A2DP AVRCP Box Charging Time 2 Hours Connection Distance 10 m Headphone Battery Capacity 35 mAh Connection Frequency 2.4 GHz Box Battery Capacity 400 mAh Microphone 13 mm Product Dimensions 54*51*26 mm Internal Resistance 320 15% Music Listening Time 5 Hours Frequency range 20-20000 Hz Headphone Standby Time 180 Hours Sensitivity 98 db 3 db Product Net Weight 43 g Charging Voltage DC5V Headphone Quantity Weight 3.8 g