Description: Combined into one, sing one. No battery, plug and play. Tailor-made, anti-spray noise reduction sponge. Using copper ring speakers, sound quality is more stable, more clear. Compatible with most of the singing APP, Tablet PC phones can be used. Specification: Mitou size: 6.5 * 5.0mm Sensitivity: -31dB ± 3dB Orientation: full point Impedance: ?2.2 ohms Working voltage: 1.5V-2V Efficiency Response: 20-1600HZ Plug diameter: 3.5MM Package Includes: 1x Microphone with Headsets
