How much does this cost to the nearest dollar?

ISOtunes LINK Bluetooth Hearing Protection OSHA Compliant Noise Isolation Earmuff Headphones, 14+ Hour Battery Life, Included Rechargeable Lithium Ion or AAA batteries, 25dB NRR, 85dB Safe Max Volume
Noise Isolating Hearing Safety 25 dB NRR rating to limit hearing damage in loud work environments. SafeMax Technology 85 dB volume limiter ensures that your music is always at a safe listening level. 14+ Hour Battery with included lithium ion batteries or use 3 AAA batteries for up to 28 hours. Wireless Connectivity listen while you work without the wires using bluetooth 4.2 technology. Built to Last durable collapsible design with comfort fit ear pads and IPX4 water resistance. Dimensions 6.69 x 4

Price is $85.00
Price: $84.99