2021 Hieha OY712 Sports Foldable Waterproof Referee Mobile Bluetooth Earphone Headset Handsfree Earphones

2021 Hieha OY712 Sports Foldable Waterproof Referee Mobile Bluetooth Earphone Headset Handsfree Earphones

$156.24

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Type   Stereo Bluetooth Headphone with Mic
Bluetooth Version   CSR 4.01 + EDR
Support Profiles   HSP, HFP, A2DP, AVRCP.
Operation Distance   10m
Transmitting Power   Class 2
Support TF Card   Up to 16G
Speaker Frequency Range   20~20KHz
Speaker Diameter (Driver Unit)   40mm
Impedance   32ohm
Microphone Dimension   4.5 * 2.2 cm
MIC Sensitivity   -54dB---2dB
MIC Impedance   2.2K
Battery   Rechargeable 3.7V / 160 mAh lithium battery
Talking Time   Up to 11 hours
Music Playing Time   Up to 10 hours
Standby Time   Up to 250 hours
Charge Time   About 2 hours
Charge Port   Micro USB
Plug Type   3.5mm
Audio cable length   1.0m / 3.0ft
Earmuff Diameter   7.5cm / 3.1in
Main item size (Foldable)   18.5 * 16.0 * 7.5cm / 7.28 * 6.29 * 2.95in