How much does this cost to the nearest dollar?

AT&T DECT 6.0 Connect to Cell Phone Answering System with Dual Caller ID/Call Waiting (4 Pack) Silver/Black
Connect to Bluetooth wireless technology enabled cellular phones to make and receive cellular calls with the ease and comfort of a home phone system. Know when your Android mobile phone receives a text, e mail or social media update. Each handset beeps and displays which kind of message was received. You can also receive calendar reminders through the system. Pair up to two cellular lines and one landline with your cordless system to enjoy virtual multi line operation. Features mobile phone charging using a built in USB port so you can make and receive cellular calls from your home phone system while charging your mobile at the same time. A built-in USB dock means you can make and receive

Price is $170.00
Price: $169.95