Knox Showerhead & (Waterproof) Music Jet Bluetooth Wireless Music/Phone Speaker (with Navy Rim) Dual-channel Bluetooth technology MusicJet Syncs with Bluetooth*-enabled devices including smart phones, MP3 players, tablets and laptops located up to 32 feet away. The latest audio algorithms, for the best call and music quality Simulated dual microphone noise reduction, Button on MusicJet to accept calls and speak 88 angled nozzels to deliver a full spray coverage