Zoook Rocker Couplet True Wireless in-ear Headphones with deep bass (ZK-COUPLET)

SPECIFICATION : Bluetooth Profiles: : HFP/A2DP/AVRCP/AVDTP/GAP /SDP Bluetooth Version: : V5.0 Speaker Impedance & Size: : Ø8mm 32Ω HD Sound:: Yes Frequency Range: : 2.402GHz-2.480GHz RF Frequency: : +2dBM/Classll Speaker Frequency Response: : 20Hz-20KHz Sensitivity (dB): : >90±3dB Operating Distance: : 10 meters Earphone battery: : 3.7V, 50mAHx2 Charging Dock battery: : 400mAh Talk time/music time: : 20 hours* Charging Time: : 1.5hrs Standby Time: : 60hrs Charging Jack: : Micro USB Input Voltage: : DC5V Weight:: 4g x2 (Earbuds) 22g ( Charging Case)  ONE YEAR MANUFACTURER WARRENTY
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