• Frequency: 80Hz-12KHz
• Output power: 8W
• Speaker impedance: 8Ω
• Working voltage: 7.2-9V
• Recharge time: 4-5 hours
• Charging power adapter: DC 12V/300mA
• One cycle battery work time: 
4--8 hours
• Host weight: 380g (Do not  contain batteries’ weight)
• Size: 210mm x 130mm x 60mm
Appliance:Teaching,Speech, guide, exercise, promotion, music, personal karaoke etc
Character：
• Patented design, streamline appearance, ergonomic
• Set Microphone speaker, Karaoke,recharger in the multi-function amplifier
• Imported advanced high-power amplifier technology and advanced circuit design
• Output power can reach 10W, clear sound, fully meet the 30-600 square meters space and outdoor use
• Large capacity nimh high cycle rechargeable batteries,circulation  and circular rechargeable battery reaches or even more  than 500 times