GK-TB750
Bluetooth version: V6.0 Bluetooth solution: Jelly 7006 Audio encoding protocol: AAC/SBC Effective range: ¡Ý 10 meters Earphone battery specifications: pure cobalt/400mAh/with protective board Earphone charging time: ¡Ö 2 hours Charging standard: DC 5V-1000mA Speaker size: Ø 40mm Speaker impedance: 32 ¦¸¡À 15% Frequency response range: 20Hz~20KHz Weight: ¡Ö 230.5g Supports Bluetooth protocols: HFP, A2DP, AVRCP Signal power level: Class 2 Operating frequency: 2.402GHz-2.480GHz Connection standby time: ¡Ö 200H Listening time: about 40H Call duration: about 38H Speaker sensitivity: 121 ¡À 3dB Earphone size: 195 * 176 * 83G mm
