Retekess TT109 Long Range Tour Guide System Receivers:1 pc TX + 15 pcs RX Adhesive stickers equipped with pager

Adhesive stickers equipped with pager buttons

Line in the recording you can record the playing music

Interface Size: 1

you can process your images to achieve results similar to those of the Hubble Space Telescope

4dbm (BER5%)

Retekess TT109 Long Range Tour Guide System Receivers:1 pc TX + 15 pcs RX Adhesive stickers equipped with pagerRetekess TT109 Long Range Tour Guide System Open air transmission distance up to 180 meters One click pairing of all receiver channels 2. 4 GHz signal transmission with stable sound quality Transmitter and receiver can be hung on the neck, freeing your hands Pocket size and light weight, easy to carry. Battery runtime It only takes 2 3 hours to fully charge, the transmitter can work for 8 hrs and the receiver can work for 18 hrs after a full charge.