Bluetooth music headset hat autumn and winter Bluetooth knit warm hat free answer phone music red/blue/black/gray/yellow…

Material;
Size; 22 * ??21.5cm
Bluetooth version; 4.1
Battery capacity; 180mA lithium battery
Transmission range; 10 meters
Function; support music, call function, power display
Bluetooth protocol; 4.1 channel stereo
How to use it;
Whether single binaural; bilateral stereo
Applicable gifts occasions; opening ceremony, birthday, awards commemorative, wedding, advertising promotions, business gifts, anniversary celebration, public relations planning, trade fairs, festivals, employee benefits, move
color; red / blue / black / gray / yellow / brown
1, acrylic material, work Kaoyan, feel soft, better flexibility
2, Bluetooth support computer, mobile phone, tablet, wireless connection, Bluetooth effective output range of 10 meters
3, high-definition sound quality, the volume arbitrarily adjusted, standby time 18 hours, listening songs 3 hours, USB charging 2 hours
4, bass stereo, comes with a microphone, call songs, do not have a cell phone with earplugs, anytime, anywhere to listen to listen
4,180mA safety environmental protection lithium battery