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Retekess FM transmitter TR508 is new model, this one is very good for drive in services. It has FCC and IC, free use in US. The range is 400-500 meters which can fit most use. If any other questions, feel free to email us at support@retekess.com. Thank you.

Retekess TW103 and TW104 look same, but they have the huge difference. TW104(JT-1918) is duplex and the other is half-duplex. Please check the detail. If you have any other request, feel free to contact us at support@retekess.com

Retekess TH103 is the sound and light alarm system, it has 3 notice modes, mute, low voice and loud voice. You can set according to your usage. It is up to 100DB if you need large volume. You can use it for family care, hospital, supermarket and warehouses, etc..

In order to fit more peoples need. Retekess develop one new FM transmitter for Church and movie theater. TR507 long range FM transmitter has bluetooth function. It is very easy to cooperate. If any questions, feel free to email us at support@retekess.com