Check the listing for details. new ADSL VDSL high speed internet filter kit. Color: White, Condition: New. Listed at 4.10 USD. Brand new quality DSL filter kit made for AOL, but can be used with any DSL, ADSL2, ADSL2+, and VDSL high-speed internet modems to block high-frequency signals from damaging any connected devices like answering machines, caller id units, auto-dialers, PBX, telephone systems, cordless telephone bases, corded telephones, and even fax machines or computer modems. Kits are brand new old stock, originally used by many different internet service providers all around North America and can be used for any type of telephone line modems and connected devices. Four (4) single jack inline filters are included, a wall-mount adapter should you have a telephone mounted on a wall somewhere, like in a kitchen, hallway, entrance area, garage, or workshop, and there is also an instruction manual. The manual shouldn't be needed as it's a simple inline installation that takes about 5-10s to install and protect all your connected devices.Each of these inline filters sell in most stores from $9.95-24.95 each, and the wall plate adapter usually runs from $19.95-39.95 from some retailers. So this kit is a great deal with everything you need to protect your devices. The items are all made by 2Wire, a very high quality product manufacturer for many years of Telecom protection. Don't be fooled by many no-name brand items being sold these days for as low as $0.99 that can easily allow internal damage to your expensive electronic devices, or causing intermittent connection issues, or even slow connection speeds for various connected devices.