GK-E025B（Double label ENC）
Bluetooth Version V6.0
Bluetooth Solution Jerry 6973D4
Audio Encoding Protocol SBC, AAC
Effective Range ≥ 10 meters
Earphone Battery Specification 35mAh Protection Board
Earphone Charging Time ≈ 1.5 hours
Charging Box Charging Standard DC 5V1A
Approximately 3 times for headphone charging
Speaker Size: Φ 13mm
Speaker Impedance: 32 Ω± 15%
Frequency Response Range: 20Hz~20KHz
Weight (Single Earphone) ≈ 4.2g
Weight (Complete Set) ≈ 42.8g
Supports Bluetooth Protocol HFP, A2DP, AVRCP
Signal Power Level: Class 2
Working frequency 2.402GHz-2.480GHz
Earphone charging voltage DC 5V ± 0.2V
Charging case battery specification 400mAh protective board
Charging case charging time ≈ 2 hours
Connection standby time ≈ 50H
Cumulative battery life about 20H
Speaker sensitivity 115 ± 3dB
Charging case size 63 * 50 * 29.5mm
Single headphone size 33 * 23 * 23mm
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