Yamaha's THR series is awesome. This is pretty loud, very small and has heaps of effects and tricks on deck. It sounds pretty good as a Bluetooth boombox too. Remember friends: a boombox is not a toy.

Model: Yamaha THR10 II
Made: China, recent model (serial T198720OQ)
Output: 10 watts
Power: 15v AC via included adaptor
Speaker: 2 x 3.15" speakers 
Channels: 1, switchable to several amp modes
Finish: cream
Accessories: power supply only

Condition notes: Used, no major marks, fully functional. Overall: very good condition.