Brand: neutral
<br />Transmission range: 10 meters
<br />Function: support music, voice control, call function
<br />Processing custom: Yes
<br />Bluetooth protocol: 4.1
<br />Channel: stereo
<br />Usage: ear plug type
<br />Whether single ears: bilateral stereo
<br />Applicable occasions gifts:  birthday, Memorial Award, wedding, business gifts, advertising and promotion, anniversary celebrations, public relations planning, festivals, fairs, housewarming, employee benefits
<br />Color: black, blue, pink, orange
<br />The bluetooth specification: bluetooth v4.1 + edr
<br />Wireless transmission range: 10 m
<br />Battery capacity: 120 mah
<br />Audio sex ratio: > = 95 db
<br />Distortion: < = 1%
<br />Bluetooth range: 2.401 to 2.480 Ghz
<br />The corresponding frequency: 20 hz - 20 KHZ
<br />Output power: 2 * 20 mw
<br />Charging voltage: 5 v
<br />Normal working hours: 8-10 h
<br />Charging time: 4 h<p> <b><b><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-2-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-3-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-4-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-5-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-6-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-7-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/58abfe981324d170d710670b-8-orgin.jpg></b></b></p>