Hi-quality sound wireless door chime QH-835A Music can be provided by clients, Super tone quality

 *          Special surface finishing

*          FCC, CE and RoHS compliant *          Transmitter IP44 waterproof *          More than 200M transmitting distance *          Battery-operated, with auto-learing code *          1 million sets of auto-learning codes to avoid interference *          Energy saving, transmitter battery can be used for over 15 months, and receiver batteries for at least 6 months 

QH-835A