Safety Technology International, Inc. STI-3300 Wireless Doorbell Extender with Receiver Connects to Existing Hardwired Doorbell, Part of Musical Wireless Chime Series 1 White cocoon 5MM Speaker Mic Stereo Audio

5MM Speaker Mic Stereo Audio Y Adapter

Read more Supported devices: Supports HD-SDI

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Safety Technology International, Inc. STI-3300 Wireless Doorbell Extender with Receiver Connects to Existing Hardwired Doorbell, Part of Musical Wireless Chime Series 1 White cocoon 5MM Speaker Mic Stereo AudioSafety Technology International, Inc. STI 3300 Wireless Doorbell Extender with Receiver Connects to Existing Hardwired Doorbell, Part of Musical Wireless Chime Series STI Wireless Doorbell Extender connects to your existing traditional hard wired doorbell system and extends a new chime to hard to hear areas. Once the unit is wired into existing system, the included receiver can be plugged into any standard electrical outlet. This allows you to hear