3 Hours Voice -Mantra -Sound Module is an easy to use module, which is highly suited for voice recording. This is a high-quality module, which is apt for natural voice storages. It is a propaganda module, offered with a single-pass play function. This is offered with microcontroller control, which is compatible with speaker. 3 Hours Voice -Mantra -Sound Module can be utilized for multiple sites. This is apt for offering remote site recording and centralized management.