B20 Wireless Earbuds BT 5.1 Headphone with Audio function

$134.00

BT version 5.1 Charging voltage DC5V Playing time 3hours Music time 4-5hours Standby time 120days Transmission distance 10-15meters Earphone charging time 60mins Speaker playing time 2.5-3.5hours Speaker charging time 60mins Frequency range 20-20000KHZ Earphone capacity 40mah Charging case capacity 600mah