1Ergonomic Design: The excellent design of our karaoke wireless microphone is very suitable for handheld, comfortable grip and not easy to slip off. 2Built In High Quality Bluetooth module: It can be used as a microphone or as a speaker, player and recorder, compatible with various singing applications. 3Easy to Use: Multifunction buttons, easily switch between different models, adjust the volume, sing and play music. With reply sound mode, it can bring surround immersion. 4High Compatibility: Support storage card up to 32GB (not included), support song switching. The Bluetooth connection distance can reach 10m. 5Rechargeable Battery: 2000mAh rechargeable multi protection lithium battery to ensure longer singing time. Faster charging and longer battery life. Item Type: Bluetooth Microphone Model: K6 Material: ABS Function: Bluetooth Microphone, Loudspeaker Scope of Application: Smart Devices with Bluetooth Pickup: Capacitive Reverberation Mode: Reply Sound Effect Reverberation Bluetooth Version: V5.0+EDR Memory Card Playback Format: MP3, WMA, WAV Transmission Distance: 10m / 32.8ft (Obstacle Free Distance) Working Frequency: 2.402G-2.480GHz Transmitting Power: 4dB Receiving Sensitivity: -85dB Signal to Noise Ratio: 80dB Distortion: 3% Output Power: 3W+3W Speaker Specifications: 40mm 4/3W Frequency Response Range: 100Hz-18KHz Microphone Built In Battery: Polymer Lithium Battery Battery Capacity: 2000mAh Charging Time: About 3 Hours Playing Time: About 3-5 Hours Sound Source Input: Bluetooth, Memory Card, Line In Memory Card: 32G (Not Included) 1 x Microphone 1 x Charging Cable 1 x 3.5mm to for Android Interface Cable 1 x Manual