The Futon Ohm Tab is a V/W adjustable coil tab with many bright spot functions, which may even give you a new experience you've never found on any other coil tab. This coil tab is very portable (55×80×24mm, smaller than a cigarette pack). The aluminum alloy CNC-milled body with four 3M rubber pads on the bottom provides a great texture, excellent durability, and great stability when placed on the table. The Futon Ohm Tab has a side fire button that is pleasing to press.