Loud speaker: 2 * 4inch - Product Size: 170 x 170 x 400 (mm) - N.W.: 1.54 kgs - Output voltage: 3.7V Input: DC 5V - Output power (RMS): 10W - Signal and noise ratio(SNR): 80db - Frequency Response: 150HZ-18KHZ - Output distortion rate0.5% - Li-Battery Capacity: 1200mAH (1pc 18650) - Material: ABS + Metal Mesh Highlight Bluetooth version v4.2+EDR Sulport USB/TF or micro SD/AUX/FM/MIC LED flashlight Wired microphone support With handle,easy to take out What in the box 1xUSB Charging cable 1xremote control 1xAUX cable 1xCaring tie