Electronic Hearing Protection Earmuffs With Sound Amplification And SuppressionFeatures:Ultra low profile earmuffsAudio input jackLow noise or frequency adjustment for natural sound clarityvolume controlSound buffer composite shellThere are currently black green khaki A single switch can independently control the pickups on both sides, powered by two AAA batteries (the product does not wear batteries), and the working time exceeds 200 hoursThe wearer provides 6 times the sound pickup effect 3.5mm dual-channel audio interface can be connected to mobile phones and other audio equipmentNet weight: 360gProduct gross weight (with packaging): 485gPacking: neutral cartonExpanded size: 14x12x23 Shrinked size: 12x10x13Color: Black, Khaki, Greencontain:1x electronic protective earmuffs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.