The Mechanical Stone Midi Box with electronic board takes maximum power from the battery with no harm to button. The button is a stainless steel band. Also, the board has special overdischarging and reverse polarity protection. For 18650 battery. Ruby Wine Special Edition is limited stone color seria of 45 items only. The last picture is to compare the color with Red Velvet. Price for 1 item.
Size: 25x31x85 mm Battery: 18650 Weight: 76 gr Material: stainless steel and natural acrylic stone Color: Brown/Ruby Wine Special Edition - new! Price: €114