How much does this cost to the nearest dollar?

David Clark ANR aviation headset
Headset shoppers in search of the ultimate combination of hearing protection, crystal clear communications, and unsurpassed comfort have found it in David Clark's ANR Headset. A single 9V battery enhances the headset's passive Noise Reduction Rating (NRR) of 23 dB by an addition 17-22 dB of low-frequency electronic noise attenuation. The battery delivers up to 25 hours of reliable ANR noise suppression, and the unit boasts a user-selectable Auto Shut-off feature to prevent against inadvertent battery usage.With comfort a top priority, David Clark designed the with a super soft foam-filled pillow headpad and its trademark undercut gel ear seals for unequaled all-day comfort. The unit's M-7A electret noise-canceling mic delivers crisp

Price is $699.00

Price: $698.89