Bluetooth version: V5.0;
Speaker size: 40MM;
Impedance: 32 ohms;
Sensitivity: 108db/+-3db;
Microphone size: 4.0*1.5mm;
Product size: 20.5*18*5cm;
Charging time: 1-2 hours;
Talking time: approx. 12-18 hours;
Chip Solution: Jellyfish 6925D;
Output power: 40MW;
Audio power: 40MW;
Audio output: Dual channel;
Operating voltage: 3.3V-4.2V;
Standby time: 15 hours;
Battery capacity: 250mAH with protection plate;
Connection distance: 8M;
Product weight: 330(with box);
Packing quantity: 60pcs;
Functions: Bluetooth music player Bluetooth call (answer/end/reject), voice playback, etc;