Avermedia Wireless Classroom Audio System AW330

•Enhanced mic voice pick •Enhanced anti-howling algorithm and voice quality •Enhanced wireless transmission performance •Increased mic volume +/- steps •Smart pairing •Pairing notification sound •Increased Line-in volume •30min auto power-off Specifications Operating range: 15–20 m / 50–65 ft Wireless frequency: 2.4 GHz Operating temperature: 0–35°C / 32–95°F Microphone • Battery: 350 mAh lithium-ion polymer • Battery life: about 8 hours • Power supply: 5V / 2A • Dimensions: 30 x 80 x 25 mm • Weight: 32 g Speaker • 20 W RMS • Battery: 2600 mAh lithium-ion polymer • Power supply: 9V / 2A • Dimensions: 70 x 90 x 212 mm • Weight: 600 g In the Box Microphone Speaker 3.5 mm audio cable USB charging cable AC adapter for speaker Lanyard & buckle Quick guide