The Makita DMR203 Bluetooth® Jobsite Speaker runs on both an AC adaptor and Makita Li-ion batteries. True Wireless Stereo (TWS) technology allows the user to wirelessly pair two DMR203 speakers via Bluetooth® to enjoy a deep, rich and powerful stereo sound. There are six selectable sound modes to suit the music genre and the My Equaliser (MY EQ) mode enables the user to independently adjust treble, midrange and bass for a desired sound quality. TWS technology also allows up to ten DMR203 speakers to be paired and connected to one mobile device to play the same sound simultaneously. Equipped with Bluetooth® Version 5.0 Class 2, to wirelessly connect to your mobile device for playing music with a range up to 10m. A colour LCD panel shows song title, artist name etc. It has an IP65 rated dust and showerproof construction. The storage compartment allows you to charge your mobile device while being stored. The speaker has a flat anti-slip top surface and its elastomer bumpers protect against rough handling on a jobsite. Supplied with a carry handle for easy transport. Not compatible with G-Series Battery, NiCAD or NiMH Batteries. Comes as a Bare Unit, No Battery or Charger. Specification: Range: FM 87.5-108MHz, AM 522-1629kHz Battery Type: Lithium-ion Battery Range: 10.8-18V Weight: 3.4kg