Feature:1. Wide Compatibility: Mini bluetooth karaoke machine can be compatible with all systems, mainstream software and systems can be used, intelligent compatible with a number of cell phones on the market K songs live software.2. HiFi Stereo Sound: Karaoke machine with 360 degree stereo surround sound, dual speakers and diaphragm large diameter voice coil, sound even full, HiFi sound quality.3. Speaker Function, FM Radio: Mini bluetooth speaker, HiFi sound quality without impurities; FM radio, covering a number of domestic radio channels.4. Microphone, Memory Card: Multifunctional microphone, can input multiple sound effects fun and interesting; can be inserted into memory card (without memory card), plug in MP3 can be listened to anywhere.5. Multi Mode Application: Mini bluetooth speaker has three modes of Bluetooth, card and headphone, easy to achieve a variety of modes of play, cell phones, tablets, laptops, desktops can be used.6. Powerful Battery Life: Mini bluetooth karaoke machine has 2000 mAh battery capacity, can continue to play for 6 hours, do not worry about running out of power too fast.Specification:Item Type: Mini Bluetooth Karaoke MachineMaterial: ABSSpeaker Built in Battery: Lithium Battery 2000mAhMicrophone Built in Battery: Lithium Battery 500mAhPickup: CapacitiveReverb Mode: Back Sound Effect ReverbTf Card Playback Format: MP3 WMA WAVTransmission Distance: About 10m/32.8ft (Barrier Free Distance)Operating Frequency: 2.4G-2.480GHZReceiving Sensitivity: -88dBSNR: 80dBDistortion: 1%Output Power: 8WMemory Card Interface: (Memory Card Not Included) Support the Maximum 32G.Package List:1 x Speaker1 x Microphone1 x Charging Cable1 x Instruction Manual1 x Storage Box