INVISITY-FLEX is a one-channel, in-ear RF receiver within the Invisity line by Phonak. It is completely wireless, sits inside the ear canal, and weighs 1.5 g for day-long wear, providing unobtrusive audio prompts. The flex version uses a 7 MHz RF range and is programmable with the optional invisity IPU or via a Phonak dealer. Wisycom is an authorized distributor for Phonak Communications in Italy.