APCO 25 Phase 1 and Phase 2 Support Factory Programmed microSD* card for all District scan groups arranged by CFA Frequency Database Quick Key System Access, PC Programming 4 GB microSD card provided (supports up to 32GB) Instant Replay: Plays back up to 240 seconds, Alpha Tagging, Backlit Keypad & LCD Size of Unit (mm): 184mm (W) x 151mm (D) x 56mm (H)