Wireless signaler system for telephone, doorbell and paging Adjustable audio alert plus large flashing strobe good for senior persons useSpecial good for those people with hearing impaired
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INVENT-TECH ELECTRONICS MANUFACTORY LTDVIP会员第12年
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Wireless signaler system for telephone, doorbell and paging Adjustable audio alert plus large flashing strobe good for senior persons useSpecial good for those people with hearing impaired
