KJB Security Products Inc.
iStranger
iStranger is a cell phone compatible voice changing system made exclusively for KJB Security Products. Two voice changing modes allow for greater disguise of different voice pitches so the user can go unrecognized by other callers. The rechargeable battery offers six hours of life and only turns on while the phone is in use. Designed for portability, the durable metal housing and rubber edge will withstand normal wear and tear.
https://www.kjbsecurity.com/products/detail/istranger/966/