Bluetooth version: V2.1
Wireless transmission range of 10 meters, maximum up to 20 meters
Bluetooth file transfer speed 25KB/S
Music play time; 15H
Wireless call time; 40H
Speaker parameters; 4 euro 3W 40 dual speakers
Radio frequency; 2.4GHZ
Transmission range: 10-20 meters
Input voltage DC5V/500mA
Charging voltage; DC5V
Battery: 4000mA
Transmission power; class2
Overall size 1mm
Metal texture design;
Portable and portable design;
Wireless Bluetooth audio transmission
A variety of classic color selection
Phone hands-free function
Computer small speaker
Card box
Recorder
Radio optional