This Tascam Portastudio Four Track Cassette Recorder Model 414 comes with a powerpack.
The recording buttons work, but  I can't vouch that it records as It hasn't been used for a while, hence it is a little dusty. 
It can be used as a mixing desk.
The console/tabletop form factor makes it easy to use and handle, while its compact size of 25 cm depth, 10 cm height, and 37 cm width makes it a perfect fit for any home studio. 
 Made in Taiwan, this unit is durable and built to last.
 Instruction manual is not included but available on line.
UK bidders only please.