L&B Quattro Audible Skydiving Altimeter LED Option:With LED Socket Use the line type and

Use the line type and size options to match your actual flying

damaged or sharp grommets can quickly damage lines even when soft links are used

your national rules and your DZ rules

flat glide and a powerful flare

Considering fit - the container is custom made for your body

L&B Quattro Audible Skydiving Altimeter LED Option:With LED Socket Use the line type andLED socket option Select With LED Socket if you want the Quattro II prepared for LBs external visual LED warning light. The LED socket version gives the same audible altitude awareness features, plus a visual warning output for jumpers who cannot reliably hear an audible in every situation, including high speed flight, noisy helmets, hearing limitations or disciplines where extra visual altitude cues are useful. The LED socket is an integrated product