EarTec UL-HD-M UltraLite Wireless Headset System Condition:* New surplus stock, in open OEM packaging. As pictured. Additional Notes:* Full Duplex wireless communication without a base station or beltpack. * Range up to 300 yards (line of sight, terrain dependent).* Digital 1900 MHz band is interference free.* Li-Poly Batteries: Field replaceable.* Adjustable Mic Boom: Rotates 270 degrees, worn on left or right.* Auto Mute: Mute microphone simply by moving the boom to up position.* Volume Control: Simple Up / Down push button adjustment.* Water Resistant: Silicone sealed for use outdoors in inclement conditions.* Deluxe Padding: Headsets fit firmly yet comfortably for an 8 hour work shift.* Field Programmable: Start small and add to your system as needed.* Multi-port Charger: Individual battery bays, green LED indicates charge.* Softside case: Waterproof nylon with padded compartments.EarTec UL-HD-M