TAKSTAR LE100W True Wireless Earbuds

Driver Type: dynamic
Driver Diameter: Ø13mm 
Frequency Range: 20Hz-20KHz 
Impedance: 32Ω
Sensitivity: 102dB±3dB
Microphone: -41dB±3dB
Rated Power: 3mW 
Max power: 5mW
Audio Decoding: SBC, AAC
Wireless Version: V5.3
Wireless Protocols: A2DP, HFP, HSP, AVRCP
Wireless Frequency: 2.400GHz-2.4835GHz
Transmission Range: 10m 
Charging: USB 5V/500mA
Charging Time: earbuds: approx 1.5H; case: approx 1.5H
Battery Life: about 6H on earbuds, and around 3 recharges from case