MODEL: AMD-MN05BT.T DATE :2012-10-29 Test Conditions Supply Voltage: 4.2V load: 4 ohms No. Name Conditions Standard Minimum Maximum Remarks 1KHz THD10% 2.5W 2.2W of output power 2 SNR 1KHz 60db 50db 3 Frequency response ± 3db 170Hz-20kHz 4 TF card to play MP3 format 5 Bluetooth (2.4GHz) distance ≥ 10M 10M Function USB device functionality: native charged. 2 player TF card, support MP3 format songs 3 Bluetooth connectivity 4-connected cell phone calls hands-free function 5 built-in lithium 3.7V 600mA / H Battery