Jammer suppresses the operation of the recorders by radiating noise interference. The parameters of the noise interference are specially applied on the suppression of many types of recorders. It improves the functioning performance of the jammer. Sj-003 does not make any acoustic noises when it is working! You can use jammer as desktop device in your office, as standalone device in your briefcase. It is in clock design and disguise its actual function. You can put any of the office item on top of it (such as phone set, penholder, etc.) . Thus, you can hide functioning of the jammer from anyone who is trying to get the confidential information. You can use the remote control unit to activate / deactivate the suppression. Features: ------------------------------------------------ The suppression of audio cassette recorders. The suppression of audio digital recorders. Real time clock. Remote control. Long operation time-up to 2. 5 hours. Intelligent fast battery charger. Low weight. Size is suitable for portable application. It can be completed with a bullet-proof briefcase Specification: ------------------------------------------- Distance of suppression: - for digital recorder, max 0, 5-2 meters - for cassete recorder, max 3-8 meters Suppression beamwidth: - horizontal 100o - vertical 80o Remote control range: up to 7 meters Operation time, max: 2. 5 hrs Jammer - size: 290x210x30 mm - weight: 1, 8 kg Currency: USD