Transmission range: 10 meters
<br />Function: support music, voice control, call function, power display, multi point connection
<br />Bluetooth protocol: 4.1
<br />Channel: stereo
<br />Usage: hanging ear type
<br />Gift giving occasion: opening ceremony, birthday, awards, business gifts,  anniversary celebrations, public relations planning, fairs, festivals, employee benefits
<br />Color: blue, red, gold
<br />Good sound quality brings wonderful visual enjoyment, this is the way it is.