Socket Communications CM7100-510 56Kbps Wireless Bluetooth Modem Main Specifications Product Description Socket Cordless 56K Modem fax / modem Device Type Fax / modem - Bluetooth Enclosure Type External Dimensions (WxDxH) 1 in x 3.1 in x 2.9 i Weight 3.2 oz Max Transfer Rate 56 Kbps Protocols &amp; Specifications Bell 103, ITU V.21, Bell 212A, ITU V.22bis, ITU V.29, ITU V.32, ITU V Max Fax Transfer Rate 14.4 Kbps