The Blueberry A Guitar Amp ....... In A JAM JAR! Specification Wattage 1.25 watt Speaker 66mm 2.5" 8ohm Input 1x 1/4" Jack Output 1x 1/4" Jack Impedance 4-16 ohm Weight 400g Dimentions 80x80x80mm Power 9V Key features Hand wired :- Hand Made on the Isle of Anglesey, North Wales. We are a small, family run business. All the Jars are hand drilled, hand wired and hand-labelled, making each one a little different (especially when your label is the 100th of the day!) Each Jar's output will power any external cabinet including a 4x12, but can also be plugged into the input of an amp. The amp is a cleaner and more powerful version of Original The 'JAM' Jar amp with bit of grit at full volume, as you turn down the volume on your Instrument (which is essentially the volume for the amp) it will clean up the sound.