This unit is in a lightweight, rugged enclosure with a built-in handle that can be placed on the ground, on its side, tilted back or elevated. Stream from a mobile device, plug in a microphone or musical instrument eg. Acoustic guitar with electric pickup. This system is ideal for a variety of small size PA applications. Three channel mixer with independent EQ, reverb and ToneMatch processing on two channels for microphones and guitar. A dedicated third channel provides high quality, wireless Bluetooth streaming up to 30' (9m) from a mobile device, with one-touch pairing. Advanced configuration options available by downloading the Bose Connect app to a mobile device. There is also a dedicated channel for a 3.5 mm wired source. Battery charge time 5 hours, (3 hours in Quick Charge); Users need to install Bose Connect app to use Bluetooth with this device; Input: 2 combo XLR - ¼", 3.5 mm, Bluetooth; Output: ¼" TRS line; Unit may be mounted on a speaker stand with a 35mm post capable of supporting a minimum weight of 15.7 lbs and an overall size of 9.5 x 11 x 13"; Rechargeable battery provides up to 11 hours of playtime, connect the detachable AC power cord to recharge; CO copy: Serial Number: 079111Z11820495AE / NW copy: Serial Number: 079111Z12520511AE; Model 426564; Sound Pressure Level 103 dB/109 dB peak, User serviceable li-ion battery, Weight 15.7 lbs (7.1 kg)