This full-featured power supply allows for precise control in 1/10-stop increments, all with digital-controlled output, insuring that flash and color temperature remain consistent every time over an 8-stop range. The D4 packs offer four independent outlets that provide true asymmetric operation at the turn of a dial and will accept all Acute and a variety of current Pro-7 flash heads. Auxiliary functions such as sequence, delay and intervalometer make difficult shooting situations simple. D4 packs also have a Pocket Wizard 32-channel/4-zone receiver built-in for remote operation. Each pack is supplied with power cable, sync cord, USB interface cable and Macintosh software.