Freedom Bluetooth Keyboard for PDA and SmartPhones - Blackberry Palm Treo HTC Samsung Motorola iPAQ Nokia Dell HP QWERTY English The HID mode that permits Out of the Box Alphanumeric compatibility with many products including PCs, Laptops and many PDAs using the HID technology. HID Profile for connecting to Human Interface Devices via Bluetooth, most common profile used for PDAs, Smartphones, Laptops, PCs etc SPP Profile, Serial Port emulation via Bluetooth, used by all BlackBerry devices # Duality gives this keyboard the widest available compatibility with Bluetooth enabled devices # Off / HID / SPP mode switch,