Retro Phone Handset With Bluetooth And Usb Charging Cable For Cell Phones, If you are a nostalgic person, trust me this retro handset will definitely make your calls fun and stylish! The handsets for cell phones has high-definition speakers and a microphone, and the frosted earpiece shell is more durable. Simple operation - menu key: pick up/hang up, voice +/- buttons for volume control during calls, and usb interface rechargeable. The bluetooth handset support any mobile phone, computer, as long as there is Bluetooth support. Retro telephone handset are the vintage gift option for those who are nostalgic.