portable amplifier with microphone

frequency response:50Hz-13KHz Maximum output:10W operating temperature:-10°C-45°C Mainframe: About 245 gram (exclusive of battery)Dimension:143*84*47.5mm Charging time :About 10 hours Microphone: Capacitive single orientated Power Supply:6V,800mA power supply or DC1.2V*5 battery Loudspeaker:4Ω10Winput signal: microphone*1 TZ-188 Product features:1,bring to larger capacity storage battery power supply, so is economical and practical. 2,High power loudspeakers and so sound can travel over very large distances. 3,can play beautiful music sounds with high fidelity 4,it also can be applied to teaching, tour guide, the publicity, give a lecture and so on. 5,host machine with straps design, so it is very convenient to use.