Yamaha Stagepas 150M - monitor PA system.

This is a very handy, multi use piece of kit. It can be a 200w PA speaker for halls, small gigs, acoustic singer/songwriter stuff, or it can be an on stage monitor/fold back.

The mixer offers 2 XLR/mic inputs plus 3 x stereo line ins.
This used one is fully working and has marks on the housing in keeping with it use.

Spec from Yamaha - 

Even lighter than its big brothers, the STAGEPAS 150M consists of a convenient, removable, powered mixer that fits inside the speakers for transport and a handy pole mount receptacle. Plus, a Stereo Link Out and ST SUB OUT jacks help you feed any external speakers, mixers, or recording devices. The STAGEPAS 150M is a compact all-in-one powered PA system aimed squarely at giving keyboardists a great way to monitor themselves as well as functioning as a mono PA. Packing 150-watts of power driving eight channels of audio, the STAGEPAS 150M offers great sound anywhere you go!

• Detachable Powered Mixer
• 150W of Class D power
• Two-way full-range speaker system
• Built-in EQ and 1-bit modulation reverb
• Music/Speech switch
• Auto limiter
• LED output level meter