Retekess TT101 Wireless Tour Guide System Transmitter,Long Standby,Assistive Listening System,Mute Switch,Used for Simultaneous Translation,Training,Court,Teaching,Church Soundboard

* Long standby rechargeable battery; built-in 1200mAh lithium upgraded battery for receivers; easy to charge by a charge case or your own USB charging cable; more than 20 hours working upon full charge; suitable for long tour trip; note: both charge case and USB cable are not included in our package * Long transmission distance; reach about 80m/262ft at open area; stronger anti-interference ability; stable and clear audio quality;clear sound,so this wireless tour guide system can work well at meetings interpretation; the cleanest voice transmission; can be used in a church setting for the hearing impaired * Well signal; advanced anti-interference and PLL frequency synthesis technology; avoid interference effectively by using optimization of the software algorithm;expandable for an unlimited number of receivers * It allows tops 99 tour groups to operate in the same vicinity simultaneously; one transmitter could pair up countless receivers as long as they are on the same frequency * Collar clip for the micro...