:<br> This 2-piece Professional Football Referee Intercom kit is designed for referees in football and handball, offering reliable communication during the game. The wireless Bluetooth headsets feature full-duplex communication, allowing referees to stay in constant contact, even in noisy environments. With a 1200m (3937ft) communication range, the intercom system ensures clear, real-time updates between referees, perfect for managing the flow of the game on a football field.<br> Features:<br> Designed for Referees: Single-ear headset enables referees to communicate clearly while staying alert to the game.<br> Long Communication Range: Up to 1200 meters (3937 feet) between two referees, providing ample coverage on the field.<br> Full Duplex Communication: Allows continuous conversation without interference, even in noisy environments.<br> High-Speed Compatibility: Works seamlessly at speeds up to 120km/h.<br> Extended Battery Life: Up to 12 hours of talking time, with a 400-hour standby.<br> Reliable & Fast Charging: Fully charges in about 3 hours using a 850mAh Li-Polymer battery.<br> Wind Noise DSP Cancellation: Ensures clear audio even in windy or fast-moving conditions.<br> Multiple Pairing: Can connect up to 6 devices, with real-time communication between any 2 at a time.<br> Weatherproof Design: Ultrasonic molding ensures excellent water resistance, suitable for all weather conditions.<br> Stereo Bluetooth Headset: Supports stereo music and GPS navigation audio.<br> Ideal for:<br> Referees working in football, handball, or other sports.<br> Motorcycle helmets (full-face or half-face).<br> Small teams of referees (3-4 units for a referee group).<br> Specifications:<br> Frequency: 2.4GHz<br> Bluetooth Version: Bluetooth 3.0<br> Power Supply: AC 110V~240V (DC 5V 55~75mA output)<br> Chip : CSR<br> Battery Capacity: 850mAh Li-Polymer<br> Charging Time: Approx. 3 hours<br> Talk Time: Up to 12 hours<br> Package Includes:<br> 2 x V6 Bluetooth Intercom Units<br> 2 x Referee Headsets<br> 2 x Armband Bags<br> 2 x USB Charging Cables<br> 1 x User Manual<br> Note:<br> For optimal performance, we recommend using 3-4 headsets to form a referee group.