ThinkGeek offers its ThinkGeek Wireless Bluetooth Retro Phone Handset in Black for $12.99 plus around $6 for shipping. That’s the lowest total price we could find for a comparable handset by $5, although we saw a similar one for $3 less a month ago. It has a range of up to 30 feet and is compatible with Bluetooth 1.0, 1.1, and 1.2. This handset charges via USB; a USB cable is included.