The manufacturer claims an audio loss of only 5% when making calls with the phone still inside the pouch. This is just as well, as it is apparently quite fiddly to take the phone out.
Note: Apple device not included!
Manufacturer's page: iWP for Apple iPhone and Apple iPod Touch
Find the pouch at CamerasUnderwater.co.uk: All-weather protection for Outdoor, Sports, and Marine Activities.
Join the Team Zwatt campaign for a discounted power meter - available single-sided or dual-sided!
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