Description: Name: Bluetooth-compatible Earphones Product model: F3; Battery capacity: 180mah; Bluetooth-compatible version: 5.2+EDR; Bluetooth-compatible distance: 10M; Standby time: 10 days; Product color: black, white; Frequency range: 20HZ-20KHZ; Playing time: 8H-10H; Maximum charging voltage: 5V 1A; Charging time: 2H; Headphone weight: 18g; Function: call function/support music; Packing list: 1 x Bluetooth-compatible Earphones 1 x charging line 1 x manual 1 x packing box Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1~3mm error,thank you.