Bluetooth version: Bluetooth V5.0
Bluetooth protocol: A2DP, AVRCP, HFP, HSPEffective distance: 10mWorking hours: about 50hRated input: DC 5V 500mAFrequency response range: 20Hz -20KHzSensitivity: 100dBNominal impedance: 320
Secure payment
Secure Privacy
Refund in case of loss of the parcel
Refund for non-delivery
Refund if the item is damaged