Clear & stable sound quality
UHF 663-694MHz stable signal
150 adjustable channels
Ultra-light portable body
6-8h long battery life
3-guide seamless switching
Product Introduction
This One-way UHF Audio Tour Guide System L7 is a professional one-way audio transmission device built for group tour guiding. It operates on 2.4G and UHF 663-694Mhz frequency bands, delivering stable and clear sound transmission. The tour guide uses the transmitter to broadcast explanations, while visitors wear receivers for crystal-clear listening. This One-way UHF Audio Tour Guide System supports Bluetooth pairing with mobile phones and translation devices, and enables seamless switching for up to 3 guides, making group guiding more efficient and flexible.

Specifications
L7–T Transmitter technical parameters:
| Carrier frequency | UHF794-806Mhz |
| Number of channels | 150CH(Adjustable mode: 1 – 150 channels) |
| Communication distance | ≤100m |
| Charging duration | 2.5h |
| Weight | 48g |
| Size | 114.8mm(L)*54.8mm(W)*20.6mm(H) |
| Working hours | ≥10h |

L7-R Technical parameters of the ear-mounted receiver:
| Carrier frequency | UHF794-806Mhz |
| Number of channels | 30CH(Adjustable mode: 1 – 18channels) |
| Communication distance | ≤100m |
| Charging duration | 2.5h |
| Weight | 16g |
| Size | 56.2(L)*23.6mm(W)*15.6mm(H) |
| Working hours | ≥10h |

Product features
Stable Dual-Frequency One-Way Audio Transmission
This One-way UHF Audio Tour Guide System integrates 2.4G and UHF 663-694Mhz dual-frequency transmission technology, with outstanding anti-interference performance. It maintains continuous and clear audio transmission in crowded scenic spots, noisy factories and complex indoor venues, ensuring every guided explanation is delivered accurately to listeners.
Abundant Adjustable Channels
The transmitter provides 150 adjustable channels and the receiver has 18 optional channels, supporting flexible channel adjustment to avoid signal conflicts. This design allows multiple groups to use the One-way UHF Audio Tour Guide System at the same place without interference.
Multi-Guide Seamless Switching
It supports smooth voice switching for up to 3 guides at the same time, which is highly suitable for large-group tours, sub-theme explanations and collaborative guiding tasks. This function eliminates the trouble of frequent device replacement and greatly improves the efficiency of group activities.
Lightweight & Ergonomic Structure
The transmitter is only 48g and the receiver is a compact 15g, with a humanized appearance design that fits comfortably for holding or long-term wearing. The lightweight body reduces the physical burden of guides and tourists, bringing a more comfortable using experience.

Application Scenarios
This One-way UHF Audio Tour Guide System is widely applied in diverse scenarios:
Scenic spots & museums: For organized group tours and cultural relic interpretation.
Industrial factories: For production line visits and corporate reception guiding.
Educational institutions: For campus tours, academic lectures and observation activities.
Business events: For product launches, exhibitions and high-end VIP receptions.
Exhibition halls: For art galleries, historical displays and cross-cultural communication.
Religious sites: For church services, temple ceremonies and pilgrimage guidance.

Product Details
Transmitter Operation Details:The L7 transmitter is designed with an intuitive button panel, including MENU, SET, MUTE and independent channel adjustment keys. All functions can be operated with one hand, making it easy for guides to switch channels, adjust volume and turn on mute during explanations. The moderate size and smooth casing make it easy to hold or clip to clothing.
Receiver Wearing Details:The mini receiver has an ultra-compact body and a lightweight structure, which can be used with earphones or hanging lanyards. It fits firmly when worn and will not fall off during walking or visiting, bringing a stable and comfortable listening experience for tourists.
Charging & Management Details:The system supports convenient centralized charging, matching multi-port charging cables and large-capacity charging boxes for batch equipment management. The fast charging feature saves time and ensures the device is always ready for use.

FAQ
Q1:What frequency bands does this audio tour guide system support?
A1:It supports 2.4G and UHF 663-694Mhz frequency bands, and other frequencies can be customized.
Q2:How many guides can use the system at the same time?
A2:The system allows 3 guides to switch their voices seamlessly for group guiding.
Q3:What is the working time of the transmitter and receiver?
A3:Both the transmitter and receiver can work continuously for 6-8 hours after full charge.
Q4:Can the device connect to Bluetooth translation equipment?
A4:Yes, it supports Bluetooth connection with mobile phones, translation devices and other Bluetooth-enabled tools.
Q5:How many channels are available for the transmitter and receiver?
A5:The transmitter has 150 adjustable channels, and the receiver has 18 adjustable channels.
