The ultimate all-rounder, the Phil Jones Bass X4 Nanobass combo amplifier can not just handle a bass guitar, but a ukulele, violin, keyboard, or electronic drum kit. This combo delivers 35 Watts of output via a tight and exclusively designed 4 inch speaker that's been calibrated to reproduce every frequency range with rich clarity. Considering what it can do, this amp is also insanely compact, comfortable, and portable - weighing in at just 2.4 kilograms. The X4 Nanobass: Clean & Easy Design The PJB X4 Nanobass is basically set up to serve as the ideal practise partner. An Aux input is provided for hooking up an audio player or an external drum machine so musicians can jam along to beats, backing tracks, or their favourite albums, while the headphone output supports more private or late-night rehearsal sessions. Music can even be streamed and played through the speaker via Bluetooth 5.0 backed up by the aptX function, and when it comes to sound, this wee amp offers a clean design and easy to use controls, so simply jack in your instrument of choice and tweak the powerful and accurate three-band EQ controls to dial in your signature sound.