PierTech&reg; Walkie Talkie Wallet Earpiece Spy Hidden Bug Transmitter Set Student Cheat Copy School Exams Tests Micro Earphone Receiver Mini Wireless Audio Communication Kit This innovative kit is a perfect, affordable solution for all covert communication requirements. It includes a mini wireless hidden earpiece and sensitive microphone which let you receive hidden communication in real time from a partner, without being noticed. Features: Excellent audio quality. Comfortable to carry and use. The earpiece's color is similar to a natural color so it's completely concealed. Totaly wireless kit - transmitter, receiver and covert earpiece. Discreet receiver inside a regular wallet. It can be used for for getting exam answers from a partner, delivering a presentation with secret assistance, law enforcement, casino gaming, security, personnel protection, surveillance, and much more. Just place the wallet receiver in your pocket to receive a 1-way wireless transmission from your partner on their walkie-talkie, directly to your hidden earpiece. This complete kit comes with an earpiece, a covert wallet receiver, and a walkie-talkie. This is the real kind of covert equipment which is used by law agencies like the CIA or Secret Service. Specifications: 16 Channels. Frequency 300Hz - 5KHz. Battery Life: Up to 15 hours. Dimensions: Wallet: 120mm x 95mm x 19mm. Earpiece: 7.9mm Diameter x 12.7mm. Walkie-Talkie: 114mm x 57mm x 32mm. Transmission Distance: Earpiece-Wallet: 140mm. Walkie-Talkie-Wallet: 150 meters. Walkie-Talkie Features: Push to talk button. ON/OFF/volume knob. MIC/Earphone jack. Monitor button. Antenna port. Power Supply: Walkie-Talkie: Rechargeable built-in battery (included). Earpiece: 416 battery (included). Wallet Receiver: 5 x AAA batteries (not included).