Fits all machines with a 3,5 mm jack connector Output voltage: 4,7 V - 12,5 V Up to 4 hours of working time and 50 minutes charging time per battery Size (L x H x D): 73 x 39 x 33mm Weight: 70g (without battery), 95 g (with battery) Material: Anodized aluminum, plastic Made in Germany EnGen technically works with all Cheyenne machines, but it might not be the most comfortable solution for the HAWK Pen and HAWK Pen Unio when it comes to ergonomics.