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the SV136 provides relaxed viewing even during long observing sessions
focal length reduction: 0
Effective in light-polluted areas and under moonlit skies
and to improve the order and image of the restaurant
the files must in MP3/WMA format
Retekess TT110 2.4G Tour Guide System for Tourism Large Screen Variants:1 Transmitter and 15 Receivers the SV136 provides relaxed viewingRetekess TT110 2. 4G Tour Guide System for Tourism Large Screen Retekess TT110 wireless tour guide system is a new model in 2020 with better audio quality and customer concentric features, the whisper tour guide system designed with a large size of IPS display screen, upgraded magnetic charging method, it adopts latest 2. 4G transmission technology, range up to 100m in the open area with stable signal and better confidentiality. The wireless
