Room Conversation Protector is a top-of-the-line protection system. This is the only device in the world which can give 100% protection to your conversations against interception or recording. The LAT~D01 creates powerful interference against all kinds of listening devices! Even if a person is standing next to the participants, they will not be able to understand what is being said. The headsets allow the users to hear each other clearly while the central unit produces interference. Powered from 220V or the internal rechargeable battery with a resource time of 2-4 hours. The unit is supplied in a carry case. Specification Number of channels 6 Power source Internal rechargeable battery NiMh 3700 mAh @ 8.4V or power adapter Time of recharging 9 hours Duration of work 4-6 hours Dimensions 23x6.5x17 cm Type of headset Standard multimedia headsets with 2 jacks 3.5 mm Weight of the unit 1740 g Indications BATTERY, CHARGE, levels of channels Specifications: Display: 2.4 " 320 X 240 TFT LCD Video Input: NTSC/PAL Standard Video Recording Mode: Auto/manual/motion detection/Schedule Recording Capability: 1280 X 720, 1024 X 768, 720 X 480, 640 X 480, 320 X 240 @ 30 fps Memory Type: Micro SDHC Card (Supports Up To 16 GB)