Mini guitar amplifier in a moulded ABS cabinet, fitted with 2 x 2.5" speakers for stereo output. A choice of 4 different preamp modes ranges from clean to metal distortion with variable gain control. Delay/Reverb and Chorus/Flanger controls can add spatial and modulation effects to expand the tone palete further, with a Master volume control governing the overall output. The Coaster amplifier also has a Bluetooth® receiver for wireless pairing to a smart phone and an Aux input for wired playback of backing tracks. A headphones output gives the option of silent practice, but when amplified, this tiny amplifier delivers a full 10W output in stereo. Furthermore, the Coaster can be used away from mains power, thanks to the internal Li-ion battery that can be re-charged from USB. Small enough to fit into a pouch or pocket, this really is the guitar amplifier that can go anywhere.