👋🏼 Hello ! 💬 PLEASE ASK ABOUT AVAILABILITY BEFORE BOOKING 📦 INCLUDED: 5 x Single Headsets [1 x Master headset, 4 x Slave units) 10 x Batteries 1 x Dual Battery Charger 1 x Comes in a 1510 Pelicase. ⚙️ SPECIFICATIONS: UltraLITE HD headsets eclipse all other full duplex wireless for performance and convenience because the transceiver is built right inside the ear cup. This self-contained ‘All-in-One’ design eliminates headset wires and even belt worn radios. They provide simultaneous talk, two-way voice communication for users that need to work with their hands yet also require one ear free to listen to what is going on around them. Standard: DECT 6.0 (Digital Enhanced Cordless Telecommunications) Frequency: 1920-1930MHz (USA), 1880-1900MHz (UK/EU) Channel Bandwidth: 1.728 GHz Modulation Type: GFSK Transmission Speed: 1.152 Mbps (Baud Rate) Duplexing: Time Division Duplex (TDD) Speech Encoding: ADPCM I 32bit/s RF Accessing: Time Division Multiple Access (TDMA) Range: Up to 400m (Line of Sight) Power Supply: Rechargeable Lithium Battery (3.7 V, 800 mAh, 3.0 Wh) Full Charge Time: Up to 3 hours Operation Time: Up to 6 hours Storage Temperature: -10 C to 60 C Warranty: 12 Months Any Q's, just ask Sam