Capacity of built-in18650 battery:1500ma
supply voltage: 5v
output power: 8w
loudspeaker: 2.5" 4ω 8w
frequency response: 100-18khz
bluetooth version: shen zhen bluetrum technolog- bluetooth solution 5.1
music player+telephone speaker +taking pictures via the bluetooth+ recording+ a key to delete+ priority to play the recording
pressing the keys to adjust the volume
recharge indicator
constant playing for 1-1.5 hours
supporting fm radio, reading usb and tf card
super bass
fm radio:88-108
available in the following colors:red,blue,green,black