1、HiFi Stereo Sound: Portable wireless karaoke machine adopts hifi shielding design to ensure stable transmission, full sound quality and large band range. 2、Long Battery Life: Portable wireless karaoke machine built in large capacity lithium battery, strong endurance, get rid of plug in, and sing anytime, anywhere. 3、Colorful Rhythm Lighting: Wireless capacitor microphone have colorful rhythm lights, which can bring ambient to use and make singing feel more! 4、Aluminum Alloy Handle: Wireless bluetooth karaoke mic adopts aluminum alloy handle with fine treatment and metal texture. 5、Widely Used: Wireless capacitor microphone are suitable for karaoke, concerts, radio, etc. It is the best gift for friends and family. Item Type: Wireless Bluetooth Karaoke Mic Material: Plastic Battery: 18650 Lithium Battery 1800 mAh (Shipped with Built in Battery) Frequency Range: 100Hz-10KHz Reverberation Mode: Back Sound Effect Reverberation Play Time: 6-8H Charging Duration: 2H Horn Output: External Magnetic Horn 1 x Wireless Bluetooth Karaoke Mic 1 x Instruction Manual 1 x USB Line