Fisher Space Pen Special Edition Apollo 11 50th Anniversary Astronaut Space Pen Polk Audio MM 522 Mobile Monitor Series 5-1/4" 2-Way Car & Marine Speakers (Pair) Balanced Dual Surround System (BDSS)

Balanced Dual Surround System (BDSS) driver technology places rubber surrounds on both the outer and inner edges of each speaker cone for improved control and clarity

8" Woofers

Resolution up to 720p with compatible HD monitor (not included)

Powerful 6 1/2 waterproof cone woofer delivers accurate mid/low frequency response

comfortable and compact

Fisher Space Pen Special Edition Apollo 11 50th Anniversary Astronaut Space Pen Polk Audio MM 522 Mobile Monitor Series 5-1/4" 2-Way Car & Marine Speakers (Pair) Balanced Dual Surround System (BDSS)All brass & steel construction, hard chrome plating, pocket clip & tungsten carbide ballpoint tip Used on NASA Apollo Shuttle missions, International Space Station, Everest North Face Ski Expedition Pressurized thixotropic ink cartridges are hermetically sealed & write 3x longer than ballpoint pens Reliably performs in extreme temperatures ( 30F to +250F), underwater, in zero gravity, at any angle Precision assembled & hand tested with a lifetime