Pioneer XW-SMA4-K Wi-Fi Speaker featuring AirPlay, DLNA, HTC Connect and Wireless Direct (Discontinued by Manufacturer) Sound Tuning and Driver Design by Pioneers Chief Speaker Engineer, Andrew Jones Speakers: 3 Way (3" Mid-Range x 2, 1" Tweeter x 2, 4" Subwoofer x 1) Digital Audio from iPod/iPhone/iPad via USB with Battery Charging AirPlay Wireless Streaming HTC Connect