Altec Lansing MZW100-BLU Waterproof Bluetooth in-Ear Earbuds, Styles May Vary Certified waterproof IPX7 rated Built-in 9mm neodymium drivers deliver crystal-clear audio Features Bluetooth technology, an onboard microphone and song navigation/telephony buttons to make answering phone calls and managing music a breeze Perfect gift for the sports enthusiast Fully packaged with earbud tips Connectivity Technology: Wireless