How much does this cost to the nearest dollar?

Donner Wireless DMX Controller with 3 Receiver Built-in Battery & 1 Transmitter DMX512 Wireless Rechargeable Transmitter & Light Dome & Receiver DJ 2.4G Stage Lighting Control 4PCS
APPLICATION The DMX512 wireless controller is ideal for stage lighting control. One transmitter can control many receivers. With tricolor LED displaying indicators, the wireless DMX512 can be used in all DMX lamps. Without wires, it's the perfect way to get rid of the trouble of winding wire. (Note Only support the use of devices marked with INDIVIDUAL WIRELESS NET Donner wireless DMX transmitter receiver has 7 Groups ID code settable. User can use 7 groups individual wireless net without any interference with each other in the same place. HIGH

Price is $140.00
Price: $139.99