Protect your hearing at the range with the Walker’s Razor Slim Protection Muff. Includes audio input jack and recessed volume control knobs. Features a comfortable headband with metal wire frame that folds for easy storage. Operates on 2 AAA batteries. Composite housing gives you more effective sound dampening. Independent volume controls give you greater control over the sound. Features full dynamic range HD speakers for clear balanced sound with sound activated compression reaction of 0.02 seconds. Low noise / frequency tuned for natural sound clarity. Dimensions (L x W x H): 8.1 x 4.6 x 10.6 inches. Weight: 0.98 pounds. Please note: It is normal for the product to have chromatic aberration due to lighting issues. Ultra low profile ear cups. Full dynamic range HD speakers for clear balanced sound. Low noise/ frequency tuned for natural sound clarity. Single knob volume control. Sound activated compression circuit (SAC). 9 9 9 9 9. Non-destructive assembly Your earmuff still can be folding when the Bluetooth Adapter assembly. Independent power supply This adapter work independently, turn off the earmuff for better sound quality. Push the plug side harder. Make sure the plug is fully inserted into the socket. Check that the adapter buckle is fully attached to the ear pad ringbase. Press and hold for power on/power off. The adapter will flash blue light when working. If it flash red light, it means the battery is low. You will also hear “battery low”while using it. The device will connect to adapter automatically if it has been connected before. Turn off the bluetooth for connecting another device. Packing list: 1 x W1 Bluetooth Adapter 1 x Type C cable for charging 1 x Instruction Manual 1 x Packing Box. ARM NEXT series tactical headset. Suitable for airsoft, hunting, noise cancellation and other situations. The ARM NEXT tactical headset combines noise reduction and amplification to provide you with a variety of realistic battlefield experiences. Noise Cancelling: Protects your hearing by automatically reducing gunshots, explosions, and other sounds. And the sound of footsteps will be amplified, making it easier to find and hunt down enemies. The position of the ear cups can be easily adjusted. The rail bracket can be rotated 360° to fit the shape of the ear and head, further enhancing the noise reduction effect. The ear cups are made of silicone material and 0.3mm Tpu leather. You won’t feel any discomfort even if you wear the headset for a long time. 1, Operates on 2 AAA batteries (not included). 2, Composite housing gives you more effective sound dampening. 3, Independent volume controls give you greater control over the sound. 4, Features full dynamic range HD speakers for clear balanced sound with sound activated compression reaction of 0.02 seconds. 6, Low noise / frequency tuned for natural sound clarity. 7, Color: Black, green. Protect your hearing at the range with the Protection Muff.