Stable wireless links for up to 600 ft line of sight (stable distance relates to model number - so Bolt 300 claims 300ft, Bolt 500 claims 500ft, etc).
Industry standard wireless links for HD video. Simple to set up. Transmitter requires D-Tap Power. Receiver can be D-Tap powered or via Mains PSU.
Bolt Pro 300 - £65 pd
Bolt Pro 500 - £95 pd
Bolt Pro 600 - £110 pd