The Samson Expedition XP108w is an all-in-one, rechargeable portable PA speaker ideal for sound reinforcement needs in large rooms and outdoor situations. The lightweight XP108w offers 200 watts of power with up to 20 hours of battery life, as well as a 4-channel mixer, Bluetooth audio and a wireless microphone. Its telescopic handle and smooth rolling wheels let you bring great sound anywhere. The XP108w features a 4-channel mixer with 2-band (Bass and Treble) master EQ, as well as independent volume controls on each channel. For events, the XP108w delivers wireless music playback from a smartphone, tablet or laptop via Bluetooth (with transport controls), while the included handheld wireless microphone offers 200' of performance freedom. The additional channels can be used for adding a wired microphone, as well as stereo devices such as MP3 players, keyboards and more. Also, a line output allows users to daisy-chain multiple systems together to expand sound. Powered by an ultra-efficient Class D amplifier, the XP108w packs 200 watts into a rugged enclosure that weighs just under 24 pounds. A telescopic handle and smooth rolling wheels make transportation a breeze, while a perforated steel grille protects all the speaker's components. The XP108w features a USB wireless port for use with Samson XPD Series USB Digital Wireless Systems (sold separately), and can also be used for phone charging. The mixer's Voiceover switch enables a ducker circuit that automatically lowers the music while someone is speaking into the included mic or using the USB wireless port. The XP108w also offers a standard 1-3/8 inch. speaker stand mount for optimal placement, as well as a side microphone mounting clip for storing/transporting the included wireless microphone.