? 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