Lowrance 000-10141-001 SonicHub Marine Audio Server for HDS Systems Allows For Full Control Of Onboard Audio Entertainment Select Tracks & Albums & Control Volume From The Display Enables The Remote Operation Of iPod(tm). iPhone(tm), Lowrance Lwx-1 Sirius(tm) Radio, Am/FM Tuner & Plays Mp3s On Usb Stick Waterproof iPod(tm) & iPhone(tm) Compatible Allows control of all audio functions from HDS unit Four channel 50 Watt amplifier Numerous inputs incuding iPod, MP3, USB and line audio Built-in Sirius receiver (subscription required) Supplied with a pair of marine-grade 6.5" speakers