ATN X-Sound Hearing Protector & Thermal Target. The ergonomic volume control knob allows for total adjustment of the two built-in omni directional microphones while built-in wireless capability enableshands-free calling and music enjoyment. Or connect a playing device via the 3.5 mm audio jack. Specifications for ATN X-Sound Hearing Protector Electronic Earmuffs w/Bluetooth: Manufacturer: ATN Color: Camo NRR: 22 dB Quantity: 1 Battery Type: AAA Battery Quantity: 2 Battery Life: 300 hours Condition: New Age Group: Adults Dimensions: 4.9x3.7x0.5 in Weight: 0.8 lb Features of ATN X-Sound Hearing Protector Electronic Earmuffs w/Bluetooth Bluetooth wireless technology Ultra-low-profile ear cups Audio input jack Two hi gain omni directional microphones Recessed volume control knob Compact folding design Pair to smartphone and make calls/listen to music Package Contents: ATN X-Sound Hearing Protector Electronic Earmuffs w/Bluetooth ATN One Year Warranty This product is guaranteed to be free from manufacturing defects in material and workmanship under normal use for a period of 1 (one) year from the date of purchase. Warranty information and warranties are supplied solely by the manufacturer and not this retailer. This retailer publishes information from the manufacturer for information purposes only and the manufacturer is solely responsible and liable for any warranty information and warranties published by this retailer. Please reference the appropriate manufacturer documents or reach out to the manufacturer directly for full warranty terms and effective dates. ATN ACPROTXSND-KIT10: ATN X-Sound Hearing Protector & Thermal Target