Mini Mushroom Wireless Bluetooth Speaker

USB Charging Input Voltage: 5V 
Speaker Rated Power Output: 3W 
Lithium Battery Capacity: 3.7V/280MA 
Signal to Noise Ratio: 90HZ-20K/65dB 
Built in (3.5mm pin) Audio Input Line 
Abide by Bluetooth V4.1 + EDR Buletooth Specification 
With SBC/MP3/AAC Audio Decoding Function 
Compatible A2DP/ AVRCP High Quality Stereo Audio Transmission with Long 
Rang Control Agreenment 
Support Phone Bluetooth Hands Free Function 
Embedded Kalimba DSP Data Processor, To Complete a Variety of Digital Speech Processing. Noise Elimination Circuit. 
Bluetooth Work for the Globle Universal of the 2.4GHZ ISM, the Band of the (2.4GHZZ-2.4835GHZ) 
The Wireless Effective Transmission Distance Up to Within 10 Meters.