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Bluetooth version: v4.1
Charging Time:1-2H
standby Time: 120H
Bluetooth Profiles: A2DP, AVRCP, HSP, HFP
Sensitivity: 98dB
Talking/Music-playing Time: 4-5H (The final time dependent on the actual work condition)
Operating Distance: 10M
Frequency Range: 20-20KHZ
Speaker Impedance :16 OHM
Drive unit :Ø9mm
Charging Interface: USB
Chip: CSR
Weight:13.4g Battery capacity: 65 mAH Package: blister box
sport stereo bluetooth earphone