Accu Box S2 USB – audiophile’s dream of a power bank! Accu Box S2 USB is an accu driven power supply that delivers perfectly transmissioned power to any 5V input product. The big advantage being that the power supply is then separated from the polluted mains. No disturbing interference can be passed on to the unit this way, resulting in a more clear and spacious sound signature. The 2600 mAh capacity will give many hours of listening pleasure. In contrary to regular power banks, Accu Box S2 USB uses Li-Ion batteries. The LEDs on the front panel indicate when the unit needs to be connected to its power supply and if it is powering a separate unit. The superior aluminium/metal casing not only looks great it also protects effectively against vibrations and electromagnetic interferences! Compatible products:  S2-Line: BT Box S2, Pre Box S2 Digital, Pre Box S2 Analogue, DAC Box S2, Head Box S2 Digital, Head Box S2 Superlative audiophile power transmission Li-ion battery driven power supply No disturbing interference from mains Perfect for all phono electronics and turntables 1 x 5 V USB A output 2600 mAh capacity LED indication for charging and mains status Full aluminium and metal casework Available in black or silver Outputs 1 x 5 V / 1 A (USB A) Power supply (charger) 8.4 V Dimensions W x H x D 103 × 37 × 106 mm Weight 420 g without charger