MIDLAND Albrecht ATT/ATR400 20-Person Digital Tour Guide System with 16 Channels, 863-865 MHz, 150m Range, Charging Case 29970.S20

Guide groups up to 20 people through museums, factories, or city tours with the MIDLAND Albrecht ATT/ATR400 system. One transmitter with headset microphone and 19 receivers with earphones keep your commentary clear and private, even in noisy environments. The system operates license-free in the EU on 16 selectable channels in the 863–865 MHz band, allowing multiple groups to work nearby without interference.

Key specifications

• Digital UHF transmission, 863–865 MHz (SRD860, license-free in EU)
• 16 selectable channels
• Range up to 150 meters line-of-sight
• Transmitter power output: 10 mW
• Transmitter battery life: approx. 10–12 hours
• Receiver battery life: approx. 15–20 hours
• Integrated rechargeable Li-Ion batteries
• Centralized 20-slot charging case included
• Transmitter audio input: 3.5 mm microphone jack
• Receiver audio output: 3.5 mm stereo jack
• LCD display on transmitter and receivers (channel, battery status, volume)
• Operating temperature: -10°C to +50°C

Why choose it

The all-in-one case charges all 20 units simultaneously, so your system is always ready for the next tour. Digital transmission delivers clear audio without static, and the license-free frequency band means no ongoing fees or paperwork.

Ideal use cases

• Guided tours in museums, galleries, and historical sites
• Factory and industrial site visits
• Training sessions and conferences with interpretation
• Outdoor excursions and sightseeing groups

Good to know

Up to 16 systems can operate simultaneously on different channels, making this suitable for venues with multiple concurrent tours. The system includes 20 earphones and 1 headset microphone.