Creative ZiiSound D5x Modular Wireless Speaker System with Bluetooth Transmitter Works with all smart devices and mobile phones that are stereo bluetooth (A2DP) compatible Easily upgradeable for more compelling audio; link to additional D5x modules and DSx Wireless Subwoofer High quality wireless audio with apt-X codec Precision volume control when used with (included) BT-D5 Bluetooth transmitter Efficient digital amplifiers and world class tuning deliver striking accuracy and detail Works with all smart devices and mobile phones that are stereo bluetooth (A2DP) compatible Easily upgradeable for more compelling audio; link to additional D5x modules and DSx Wireless Subwoofer High quality wireless audio with apt-X codec Precision volume control when used with (included) BT-D5 Bluetooth transmitter Efficient digital amplifiers and world class tuning deliver striking accuracy and detail One piece, full frame, monocoque chassis for maximum rigidity Integrated aux-in for other audio devices Charges your iPhone or iPod while playing (via BT-D5 bluetooth transmitter)