Otter Products today announced that it has signed an exclusive distribution agreement with H2O Audio. The agreement enables Otter Products to offer its customers H2O Audio’s patented waterproof headphones via the company’s online store. “H2O Audio’s waterproof headphones feature patented design and engineering that combines high-fidelity speakers in a flexible, durable and fully waterproof headset. The H2O Audio headphones are compatible with the entire OtterBox for iPod case line and retail for US$39.95.