The wireless speaker can be compatible with multi-mediaappliances such as PC/MP3/MD/CD/DVD/PS. With highsensitivity, resist disturb, the sound signal can penetratebarriers like walls and objects within valid distance. Thewireless technology lets you transmit sound up to 8 metresfrom your receiver for listening freedom without any anglelimitation. You can use several receiver speakers in thesame frequency.. FM radio, with built-in FM radio, it can automatically search and fix on the channel of broadcasting.. Clock, LCD time display and frequency display.. Wired speaker; with audio line it can be used as wired speaker..