Bluetooth solution: JELI JL7006F8 
Operating frequency: 2402MHz~2480MHz 
Working distance: greater than 10 meters 
Working time: Approx. 5 hours (headset) 
Standby time: more than 100 hours 
Battery type: Lithium polymer battery 40mah 
Battery type: 380mah polymer lithium battery 
Charging time: about 2 hours 
Color: Black, white 
Horn diameter: φ10mm moving coil type horn 
Impedance: 32Ω± 15% 
Sensitivity: 100 ±3dB 
Frequency range: 20Hz-20KHz 
Head size: 3722 Si mi 
Sensitivity: -42±3dB 
Directionality: All directions 
Interface: TYPE-C