2021 The latest bone conduction hearing aid Bluetooth headphones
This is a bone conduction earphone hearing aid, please note: (It can be used if the eardrum is damaged, but it can't be used if the auditory nerve is damaged)
USER INSTRUCTIONS:

1. Charging
Use the Micro USB charging cable (included) to charge the headphone. Red LED means it's charging. When charging is completed the red LED will turn into blue.

2. Turn on/off
Keep pressing the power button for 3 secs, you will hear voice prompt "Power on, ready to pair", press again for 3 secs the headphone will turn off, voice prompt – "Power off".

3. Pairing and connection
While you hear the voice prompt "ready to pair". Enable your Bluetooth in your device and find the device named "BH528 pro" and click it to connect the Bluetooth headphone. After connected you will hear "Paired".

4. Basic operations
Single press the MFB on the left ear to pause songs and press again to re-play songs.
Single press the MFB to answer phone calls when there are coming calls. Press again to end calls. Long press (2 sec) to reject calls.
Single press the vol +/- to volume up or volume down.
Long press (2 sec) the vol +/- to skip forward or backward songs.
(More instructions please refer the user manual in the package)

SPECIFICATIONS:
Charging time: 2 hrs
Talking time: 5 hrs
Music time:5 hrs
Standby time: 240 hrs
Battery capacity: 140 mAh
Transmission range: 33 ft