Features: NYC Acoustics X-Tower Dual 4" Party Bluetooth Speaker with Karaoke Mic Input and Echo. Peak Power Handling: 50 Watts. Continuous RMS Power: 22.5 Watts. Signal to Noise Ratio: 80 dB. Frequency Response: 100 Hz - 20 kHz. Distortion: > 1.0%. Dual 4" Built-In Speakers. 3.5mm Aux Input. 1500 mAH Rechargeable Battery: Supports 12 Hours of Playback at Mid-Volume. Charge Time: 3-4 Hours. Bluetooth Range: 35 Ft.. LED Display Screen. Built in mic input with echo control and mic volume control for karaoke. LED Illumination goes to the beat of the music – can be turned on or off. Playback Options: TF Memory Card (up to 64 GB), USB Thumb Drive (Up to 64 GB). Built-in limiter circuit eliminates distortion – Distortion free playback even at top volumes. Bluetooth Version. 3.0 with Enhanced Data Rate for low latency Bluetooth playback. Perfect for karaoke, house parties, camping, bedroom, kitchen and many other applications. Playback Controls: Play, Pause, Skip Forward, Skip Back, Mic Volume, Music Volume, Echo, On/Off Switch. Compatible with any Bluetooth devices such as Smartphone's, Tablets, MP3 Players, and more!. Product Dimensions: 6.24” x 6.63” x 13.65” inches. Product Weight: 3.82 Lbs.