Metal magnetic sports Bluetooth headset wireless In-ear neck-mounted music headset gift

* Transmission range 10 meters

 *Features Power display, call function, support music 

*Bluetooth protocol 4.1 

*channel stereo 

*How to use neck-mounted

 * Whether single or both ears 

*Applicable gifts occasions Opening ceremony, employee benefits, awards commemoration, anniversary celebrations, advertising promotions, festivals, trade fairs, weddings, public relations planning, birthdays, business gifts