Availability: Usually dispatched within 1-2 business days
Features
The left ear is blue and the right ear is red.
Simple operation: Simple and convenient operation with fingers, noise reduction is controlled by digital chip.
If there is any noise, please turn up the volume to make sure that the earplugs are in close contact with the ear canal so that the sound does not leak.
Peak Gain: 33dB HFA at full gain: 30 ± 5 dB THD: 10% Eq.Input Noise level: 28dBSPL Attack time: 6ms Release time: 22ms 1.The wire of the wire connected to the headset. Then earphone connector (hard) to headset, earbuds (silica gel) to connect to the headphone connector stand & nbsp; 2. Installing the battery: gently open the battery compartment cover, place a battery in the battery compartment in the right direction, then close the battery compartment. 3. Before using this item, you must turn off the ON-OFF switch to Off and rotate the sound volume to the minimum 4. You can put this item on your ear, hold it tightly 5. Next, rotate this item up, adjust the volume until you hear the clear sound Adjust the volume to minimum before wearing. Choose a slightly larger earplug to avoid whistling. Gradually increase the volume to avoid a sudden increase in sound. If you hear a scream, check the ear (silica gel) is appropriate and if the size of the plug is tight, the appropriate choice of ear plugs and connected, make sure that no air leaks. Please clean ear plugs or ear plugs regularly to ensure normal use of hearing aids. Use for long periods of time, remove the batteries to avoid hearing aid components from battery erosion.