... Phone with LCD dot matrix display and Backlight. USB 2.0. Volume adjustment. Loading object added to make comfortable handle.Features: ... , English, German, France, Japanese, Korean lan guage and so on. 3. With back light, more clear; 4. With ringer,rings selectable ... need sound card; 9. No external power required 10. Complies with H.323, MGCP, SIP protocol 50% Off Shipping: for USB-Key(USB-113)