| http://www.w3.org/ns/prov#value | - The question most asked according to the factory is whether the system is blue tooth, because blue tooth does not work well in a high RF environment, the system uses a TDSM protocol similar to a GSM phone.The system is powered by rechargeable NICAD batteries, (a wall charger comes with the system) which can give up to 30 hours of use between charges.
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