It can be connected directly to a BT-enabled mobilephone.
The hearing amplifier can instantly turn into a BT headset and turn on the hands-free calling function with a single-tap.
In addition, you can also connect stereo loudspeaker and other audio-visual equipment with BT function to deliver clear and fine quality audio.
When the calls come in, short press the M mode button to answer/hang up the phone, long press the M mode button for about 2 seconds to reject the connection.
When playing music, short press the M mode button to plays or pause the music.