MINIMAX is the smallest and most sensitive electronic magnetic detector available today. It is so small that you can hide it in a Thumb Tip, below your watch, in your mouth, under your sleeve or you can simply finger palm it. The options are endless! This AMAZING device allows you to perform magic effects that have NEVER been possible before. You can show your hands totally empty before during and after you performance! MINIMAX is the most sensitive magnetic detector available. MINIMAX has a very quiet BUILT IN vibrator that delivers the information that you need. MINIMAX has a length of about 1 inch (3.2 cm) is 0.2 inch (6 mm) thick and 0.4 inch (1 cm) wide. MINIMAX it is extremely easy to conceal. MINIMAX is powerful. Here a few of the many possibilities with Minimax: Spike--Perform the classic 'Smash and Stab / Spike' routine without any finger ring or sharpie! Simply use Minimax and still get the information at a distance of 10 cm (about 3 inches) from the Spike! Coin in hand--You can tell which hand a spectator is holding a coin in. This can be repeated and performed with other small objects. Blindfolded--Show the spectators 5 coins and mark one of them with an "X". Now let someone blindfold you and mix the coin. You will immediately know which coin is the marked coin. Smell it--Give your spectator your finger ring to hold in one of his hands. You will know in which hand he holds the finger ring just by smelling their hand. Detect objects--Detect objects like magnetic coins, magnetic finger rings, Spike or any product you can place a magnet in. Just think of the possibilities! Minimax offers a wealth of possibilities to close up magic performers. This utility device will work with many objects, leaving you to concentrate on your performance. Detect objects like magnetic coins, magnetic finger rings, Spike or just about any product you can place a magnet in. MINIMAX comes with the minimax unit, battery, and an instructional DVD.