008A Channel Number Much And Have The Long Transmission Distance, Distance Is Up To 200m The intelligent speech explanation function is realized by adopting wireless sound amplification technology. The 008A equipment appearance light fashion, convenient...

Long distance Wireless Audio Tour Guide Systems for for Tour Guiding 008A tour guide system is detrusion by HUMANTEK CO.,LTD,The system adopts the international advanced wireless amplification technology,to realize the function of intelligent voice explain...

...Audio Wireless Baby Monitor with IR Night Vision, AV Output and Auto-awake Model: CX-W386D1 Video/Audio Wireless Baby Monitor Detailed product description: CE/FCC available Two-way speak, AV output Night vision and Li-battery Distance: up to 200m Video/Audio Wireless Baby Monitor Introduction: No more interference, unlike older analogue wireless technologies which suffer greatly from signal distortion and interference, digital wireless

... example the villa, small lake, bridge or some other open areas, this transmitter system is the right one you need. This equipment will cover a long distance in the open area around 200m, and 3km LOS from air to ground. But when there are obstacle between

Powerful Portable Speaker Portable PA Speaker Blue Tooth 5.0 TWS Connection FM Radio Amplifier Model No. GL004 Sound coverage: 1500-2000m2 Output power 25W Net Weight 1.12KG Used for Teacher; coach;party;tour guide Wireless distance 35m Input voltage DC 5V...