The portable powerful wireless speaker with an ultra-large 15" Stereo Subwoofer and a wired microphone can offers you a PA karaoke system anywhere and anytime. Its stable wireless connection allows it to play your favorite speaker from your devices (like Smartphones, Tablets, Laptops, etc.) and let you sing you favorite songs with the included wired microphone without need to go to KTV. Its additional music streaming options include Aux Input, USB Flash and micro SD Card Reader. Its built-in flashing DJ party lights illuminate the area to add a cool effect while playing the music. And, its 4400mAh large capacity rechargeable li-ion battery makes this sound system extra portable and ready to party on the go, easily enjoy clear and nature sound with echo reverberation adjustment. The versatile audio system can be used for parties, dancing, rehearsals or any other occasion where portable music is needed. Powerful and Portable: The wireless karaoke speaker system is equipped with a 15-inch Subwoofer and 3-inch tweeter for full range stereo sound which does not distort the audio even at high volume. The included remote control for convenient operation and its luggage handle and rolling wheels make travel easy. Wireless/USB/TF Card Reader/AUX-IN Connectivity: Stable wireless function allows you to stream your favorite music from your devices (like Smartphones, Tablets, Laptops, etc.) to the unit wirelessly from up to 10m. Additional music streaming options include Aux Input, USB flash and TF card reader. Simply load your card, USB flash drive or Aux-in cable, and then connect to the unit to get started. Its FM Radio function features with automatic channel search and more than 20 channels. Flashing DJ Party Lights and Recording Ability: It not only brings you crystal clear and natural sound with echo reverberation adjustment, but also looks great. Lights up in a variety of color combinations, great for parties. It features recording audio streamed through the external microphone. Includes a 3m wired microphone that is perfect for rehearsing or singing practice. Long Battery Life: A 4400mAh large capacity rechargeable li-ion battery makes this sound system extra portable and ready to party on the go. Charge the device using the included power adapter or 12V charger. Easy To Use: Simply press the MODE button to switch different functions among AUX-IN, Wireless, USB Disk and TF Card. And ECHO, BASS (woofer), TREBEL (tweeter), MIC & Speaker volume are easily adjusted by the knobs. Moreover, easily turn ON or OFF the LED lights according to the need. Turn off the "Mic Priority" function by clicking the REPETE button for two second if you\'d like sing along with music, otherwise music stops when you use the mic. Brand: iNOVA Model: LG-15 Sound System: 15\'\' Subwoofer 3\'\' tweeter Audio Power Output: 13W Audio Playing Mode: Wireless/USB Input/TF card/Aux-in playing. Max USB/SD Memory Card Support: 8GB Wireless Transmission Distance: 10m Wireless Control Distance: 5m Sensitivity: 78dB±2dB Degree of distortion: 1%@1W S/N Ratio: ≥85dB Frequency Response: 100-20kHz Speaker Battery: Built-in 4400mAh rechargeable li-ion battery Remote Battery Required: 2 * AAA battery required (not included) Power Output: DC 9V/1.5A Color: Black Item Size: 23.6 * 14.2 * 11.8inches / 60.0 * 36.0 * 30.0cm (L* W * H) Item Weight: 19.6lbs /8.9kg Package Size: 25.2 * 16.3 * 13.4inches / 64.0 * 41.5 * 34.0cm (L* W * H) Package Weight: 9.5kg/20.94lbs 1 * Wireless Karaoke Party Speaker 1 * Wired Microphone 1 * Remote Control 1 * Power Adapter 1 * English Manual