If you’ve looked all your life for a truly beautiful, simple compressor your search is over. From subtle to bold, soft to firm, Grace Compressor delivers players a remarkably versatile device in a super small package. Seven years in conception and finally realized in 2011, Grace’s siblings: the Seven Sisters, are a revolutionary new concept in the realm of guitar effects pedals. The world’s first rechargeable guitar pedals – the Sisters feature a Lithium Ion cell (like that found in your cell phone or digital camera) and internal charging circuitry. Simply connect Grace to a regular guitar pedal power supply, charge her for four hours and Voila! 120 hours of actual use! Two simple controls allow access to a myriad of squishy, compressed goodness. Volume controls the Volume! Compression controls the Compression! Functions:Brilliantly simple compressorGain and compression controlsInternal micro trimmer compression adjustmentJack sockets mounted on top sideTrue bypassUse either internal rechargeable battery or standard 9 volt DC wall wart supplySpecs: Current Draw: 110maWeight: 157 gramsDimensions: 90 mm x 30 mm x 45 mm.