USAMS YH21 Wireless Earphones Headset Over-Ear Music Foldable BlueTooth Headphones

game atmosphere light: no light
use: Travel, Gaming, Sports, PROFESSIONAL
waterproof standard: IPX 0
vocalism principle: Dynamic
volume control: Yes
place of origin: Guangdong, China
model number: YH21
private mold: Private Mold
wireless delay time: less than 30 ms
battery indicator: LED
brand name: usams
Product name: TWS wireless Headphones
Frequency range: 20Hz~20KHz
Connection range: ≤10m
Playing time: 70 hours
Charging Time: About 4 hours