Mini Short Stem Bluetooth Earphones 4-Mic ENC/ANC Noise Cancellation

1. BT/CHIP:V5.4/JL7003D4   
2. Distance: 10M   
3. Battery capacity: charging case 320mAh with protection board, earbuds 40mAh  
4. Playing time: 5-6H,  charging time for case:2H，charging time for earbuds: 1.5H，standby: 100H   
5. Driver: φ13mm, impedance: 16Ω, 5V, frequency: 20hz-20Khz, SPK sensitivity: 98±3db   
6. Product size: 60*46*25.80mm， weight: 42.5g   
7. Earphone with Li-ion protection IC board, OVP
8. Earphones pannel fuel injection