Vox Mini-GO 3 Portable Digital Modelling Guitar Amp 3W heavy Rear attenuation at 1 kHz:

Rear attenuation at 1 kHz: > 25 dB at 110 deg

1 kHz: 10 Hz to 21 kHz (±1 dB)

you can finally have the features you need

Use a 9V battery or a standard 9

no strings – or wires – attached

Vox Mini-GO 3 Portable Digital Modelling Guitar Amp 3W heavy Rear attenuation at 1 kHz:This amp is lightweight, compact and can be powered by a mobile battery. It also offers powerful and realistic amp models based on those found in the Cambridge50, as well as a newly developed vocoder for talking modulation effects, onboard effects that let you create a diverse range of sounds, a mic input, AUX input, a headphone jack and a rhythm machine that can play back patterns from many genres all as standard features. This is the most compact