Avantree Auditour Expansion Kit - 20 Open-Ear Headphones with Charging Add-on Receivers for Wireless Tour Guide System

【Compatible With AudiTour Only】 Includes 20 add-on receiver headphones for AudiTour wireless tour guide system – not a standalone device, requires AudiTour transmitter to work. 【Expandable For Larger Groups】 Add 20 more receivers to your AudiTour system and deliver clear audio to more listeners during tours, training sessions, and guided events. 【Clear Audio Up To 100m】 Stable 2.4GHz wireless connection delivers clear sound with low interference – up to 100m range in open space for smooth group communication. 【Individual Volume Control】 Each receiver features independent volume adjustment – listeners can set their own comfortable listening level without affecting others. 【All-In-One Charging Dock】 Keep 20 add-on receivers organized, stored, and charged in one dock — ideal for tours, training sessions, and group events.