Bluetooth earphones Celebrat A18 Black

Technical Specifications:
Bluetooth version: V5.0
Supports: HFP, A2DP, AVRCP, SPP, HID
Working Frequency: 2402MHz-2480MHz
Sensitivity: -81dB
Range: <10m
Best work range: <5m
Max headset power: 10mW
Frequency Response: 20-20Khz
Drive unit: 40mm
Impedance: 32Ω ±15%
Battery: Lithium Battery 300mAh 3.7V
Music TIme: About 8 Hours (70% Volume)
Talk Time: About 6 Hours (90% Volume)
Charging Input: Micro USB, DC 5V 500mA
Charging time: ~2.5h
Audio input: 3.5mm