Bluetooth with Active Noise Cancelling

1,Bluetoooth Chip: CSR

2,25dB Noice cancelling

3,Color: Black

4,Talking time: 14 Hours;

5,Music time:ANC-on 9 hours, ANC-off 10hours

6,Speaker Frequency Response:20hz-20KHz

7,Battery Capacity: 300mah li-ion polymer battery

8,Wireless Range: 10m( Free space)

9, Build-in Microphone: Yes

10, With Micro USB charging cables and Audio cables included