Bluetooth &EHS wireless headset module. The module can connect to the USB interface which is at the back of the phone (ES/GS320 ES/GS330 ES/GS410 and ES/GS620), providing Bluetooth, Wireless Headset Adapter and USB_5V Power Charger function. Support plug and play.
LCD Expansion Module 4.5inch 480x854 color display, 2 page paperless programmable keys, 18 keys each page with a three-colour LED, Daisy-chain 2 modules for 72 programmable keys, Support U6S