Retekess TT109 Tour Guide Transmitter 2.4GHz One Way 2 inch focuser telescope IP67 waterproof and Dustproof

IP67 waterproof and Dustproof

Whether you're imaging nebulae or galaxies

Sturdy and durable resistance to fall

which does not require complicated wiring

Substrate thickness tolerance within ±0

Retekess TT109 Tour Guide Transmitter 2.4GHz One Way 2 inch focuser telescope IP67 waterproof and DustproofRetekess TT109 Tour Guide Transmitter 2. 4GHz One Way Retekess TT109 2. 4G one way tour guide Transmitter with landyard Retekess TT109 is 2. 4G, it is free use in the world. And this is a long range tour guide system. If you need the range over 100 meters, and you need a lanyard to wear, and the separate headset with the receiver. This is perfect for you. Features: 2. 4GHz signal transmission with stable audio quality One Way communication One key