Mast Tour tattoo machine has an Innovation special mechanism, Special mechanism makes a good direct hit together with enough softness. Weight: 105g( 0.18lbs). Needles Depth: 0-4.0mm. Stroke Length: 3.5mm. RCA Cord connection.Start voltage: 4 V ,Stitch Frequency:25 -160 Hz, Continious operation.Smooth, soft, and quiet operation,Ideal healing results. Package include one Mast Tour rotary tattoo machine and Dragonhawk RCA cord