Feature: 1. 330Ft Range Coverage: Tour guide system is capable of transmitting signals within a range of 100 metres, suitable for guided tours, conferences occasions. A single transmitter can be connected to multiple receivers. 2. Anti Interference: Our tour guide translation equipment can prevent interference from other gadgets operating on 2.4GHz, 5.8GHz, and 5G frequency bands, such as Bluetooth devices and other devices. 3. Multipurpose: Compact size, easy to carry, simple to use, suitable for tour guides, professional translation companies, churches, museums interpreters, conferences, theatres, performance venues and other wireless sound transfer occasions. 4. Frequency Band: Translator system for church operates on the 520MHZ‑545MHZ frequency band. This allows 8 sets of the system to function simultaneously in the same vicinity without causing signal interference. 5. Clear and Quality Sound: The tour guide system delivers clear sound with excellent quality, thanks to its wide frequency response range. This feature helps provide a superior information delivery and reception experience to both guides and audience. Specification: Item Type: Tour Guide System Material: ABS Frequency: 520-545Mhz Number of Channels: 36 frequency points Antenna: 1/4 wavelength antenna Sound Input: 3.5mm jack Output Interface: 3.5mm jack Transmitter Battery Model: Two AA batteries (not included) Receiver Battery Model: Two AA batteries (not included) Battery Life: Transmitter 30 hours / Receiver standby time 12 hours (2 AA alkaline batteries) Transmission Distance: Approx. 100m / 330 feet RF Output Power: 10 mW Signal to Noise Ratio: 80 dB Frequency Response: 20 Hz to 18 kHz. Package List: 1 x Transmitter 1 x Receiver 1 x Headphone 2 x Headphone Sponge Cover 1 x 3.5mm Microphone 1 x Microphone Sponge Cover 1 x Headset Microphone 1 x User Manual