12 WATTS Neckband PA System Elegant and compact ultra portable PA amplifier with max. output power of 12W. Special circuitry provides low distortion even at high output power. Built-in high capacity rechargeable lithium-ion battery. Low battery LED indicator. Ø 3.5mm Mic input socket for connecting the headband microphone and 3.5mm Line input socket for connecting a DVD, CD or an MP3 player. Convenience of use. The unit can be used while hanging on the shoulder or by putting around the waist. Ideal for: Teaching, Tour Guides, Yoga Classes, Play Schools etc. … Power Output -12W Max. Speaker Impedance -4Ω Input Channel - Mic-1: 1.0mV, Line: 250mV Frequency Response-80-12,000Hz AC Adapter- AC: 100-240V, 50/60HZ; DC: 5V, 750mA Rechargeable Lithium-ion Battery - 3.7V, 2000mAh Headband Microphone Element- Condenser, Cardioid Dimensions- W86 × H98 × D44 mm (amplifier only) Weight (with rechargeable battery) -0.34kg approx. (amplifier only)