GK-E055（Oil spray screen printing process）
Bluetooth Version V6.0
Bluetooth Solution Blue News 7302
Audio Encoding Protocol SBC, AAC
Effective Range ≥ 10 meters
Earphone Battery Specification 30mAh Lithium Protection IC
Earphone Charging Time ≈ 1.5 Hours
Charging Box Charging Standard DC 5V1A
Approximately 4 Earphone Charging Times
Speaker Size Ø 13mm
Speaker Impedance 32 Ω± 15%
Frequency Response Range 20Hz~20KHz
Weight (Single Earphone) ≈ 4g
Weight (Complete Set) ≈ 49.5g
Supports Bluetooth Protocol HFP, A2DP, AVRCP
Signal Power Level Class 2
Working frequency 2.402 GHz-2.480GHz
Earphone charging voltage DC 5V ± 0.2V
Charging box battery specification 400mAh protective board
Charging time of charging box ≈ 1.5 hours
Connection standby time ≈ 35H
Cumulative battery life about 20H
Speaker sensitivity 116 ± 3dB
Charging box size 58 * 58 * 28.5mm
Single headphone size 29 * 19 * 19mm
The product normally includes one side with laser engraved logo and one side with parameters. If there is a silk screen requirement, the standard price is 0.3 yuan per side. Other requirements will be reported separately