The Milwaukee® M18™/M12™ wireless jobsite speaker delivers the loudest and clearest sound on or off the jobsite. The premium six speaker design provides unmatched clarity of sound with booming bass, clear mids and sharp highs. Paired with a 40 W dual channel digital amplifier, the speaker produces big sound to fill any room or work environment. Nothing But Heavy Duty™ construction features impact-resistant side caps and a reinforced honeycomb grill to withstand drops and abuse. The latest Bluetooth® technology ensures easy pairing with a smart phone, tablet or other mobile device from upto 100 ft away. Compatible with all M18™ and M12™ batteries or able to run off of AC power, the M18™/M12™ wireless jobsite speaker maximizes versatility, functionality and performance to set a new standard in high-definition jobsite sound. Milwaukee® M18™ M12™ Cordless Jobsite Speaker, Wireless Speaker, 12/18 VDC, Lithium-Ion Battery, 7-1/2 in L x 13-3/4 in W x 6-1/2 in H Dimensions