Waterprof :IPX7
Charging time of headset:1 h
Frequency Band Range:2.402 ~ 2.480
Bluetooth Profile:A2DP,AVRCP, HFP;HSP
Working voltage:3.2V~4.2V
Transmission distance:>10M
Battery capacity of the headset: 500MAH
Model:Wireless Headphones
Charging voltage:5V-1A
Battery capacity of the storage box:2000MAH
Charging time of the Charging box:1h
Call time:about 4-5 h
Support system:All Bluetooth devices and mobile phones
Play time:about 4-5 h
Bluetooth specification:V5.0
How to pair the wireless earphones with your device:
1. The first time you press the control button on both earbuds for 3 seconds and release the button until the earbuds flash blue.
2. Locate the Bluetooth signal on the phones and make the connection.
Binaural useMaster headset (R) Bluetooth signal: AMOI F9 5.0
Single ear useSub-headphone (L) Bluetooth signal: AMOI F9 5.0 L
3. The wireless earphones remain in STANDBY mode after pairing. The green LED light flashes every five seconds.
4. After the first pairing the Bluetooth earphones will automatically connect to your mobile devices as soon as they are activated.

Products include
1 x One pair of Bluetooth headsets
1 xCharging box
1 xCharging cable
1 xUser Manual
4 x Ear cap