Use: Computer, Mobile Phone, Portable Audio Player 
Channels: 2 (2.0) Special Feature: Mini, Portable, Wireless 
Color: Black White Red Blue 
Function: BLUETOOTH/USB/TF/FM/AUX Battery 
capacity: 800 Mah 
Output power: 2 * 3 w 
Outside magnetic trumpet models: 4 Ω 3 w, 50 mm 
Frequency response: 100 hz - 18 KHZ 
Signal to noise ratio: 80 db or higher 
The bluetooth standard: 2.1 + EDR 
Bluetooth solutions: jerry big sound