Z9 CSR BT 5.0 sport Bone conduction headphones 

Z9 CSR BT 5.0 sport Bone conduction headphones Z9 CSR BT 5.0 sport headset Bone conduction headphones Product Description Product Name Z9 Bone Conduction Headset Function Bluetooth chip: CSR8635 Bluetooth version: 5.0 Effective range: 10M Frequency range (Hz)﹕20HZ--20KHZ Impedance (ohm)﹕8Ω Receiving sensitivity (dB)﹕88dBm Battery: 200mAh Power battery Talking time(H)﹕6H Music time(H)﹕6H Standby time(H)﹕10 days Charging time(H)﹕2H USB port: MIC USB Product size﹕139*104*60mm Product weight﹕36g Package 1*USB Charging Cable, 1*User Manual,1 pair Earplugs,1*Retail Box…