GK-A39
Bluetooth Version V6.0
Bluetooth Solution AB5656C
Audio Encoding Protocol SBC AAC
Effective Range ¡Ý 10 meters
Earphone Battery 35mAh+Lithium Protection IC
Earphone Charging Time ¡Ö 1.5 hours
Charging Box Charging Standard DC 5V-500mA
Approximately 2.5 times for Earphone Charging
Speaker Size ¦µ 13mm Composite Film
Speaker Impedance 32 ¦¸¡À 15%
Frequency Response Range 20Hz~20KHz
Weight (Single Earphone) ¡Ö 5g
Weight (Complete Set) ¡Ö 61.5g
Supports Bluetooth Protocol HFP, A2DP, AVRCP
Signal Power Level Class 2
Working frequency 2.402 GHz-2.480GHz
Earphone charging voltage DC 5V ¡À 0.2V
Charging case battery specification 300mAh with protective board
Charging case charging time ¡Ö 2 hours
Connection standby time ¡Ö 40H
Cumulative battery life about 18H
Speaker sensitivity 119 ¡À 3dB
Charging case size 66 * 66 * 29.2mm
Single headphone size 47.5x30x16.8mm
