DP4400, DP4401, DP4600, DP4601, DP4800, DP4801. DP2400, DP2600. XPR3300, XPR3500. DGP8550, DGP5050, DEP550, DEP350. VHF 136-174MHz. Frequency Range. Compatible Handhold Radios as below models.
eBay