The waterproof and transparent film of the walkie talkie is a special material that combines both waterproof and transparent characteristics, allowing the walkie talkie to maintain clear voice transmission while preventing moisture from entering. This type of membrane is usually made of polymer microporous materials, with a microporous structure designed small enough to prevent water infiltration and large enough to allow sound waves to pass through.
The following are some key indicators of waterproof and sound permeable membranes:
- Waterproof level
The waterproof level is usually represented by an IP (Ingress Protection) code, such as IP67 or IP68.
IP67 rating means that the membrane can be soaked in water at a depth of 1 meter for 30 minutes without damage.
IP68 rating provides higher waterproof performance, usually able to withstand greater water pressure and longer soaking time.
- Air permeability
The breathability is a measure of the moisture permeability of a membrane, usually measured in ml/min/cm ²@ Specific pressure difference representation.
For example, the air permeability is 2200ml/min/cm ²@ 70mbar means that under a pressure difference of 70mbar, a membrane per square centimeter can penetrate 2200 milliliters of air per minute.
- Sound attenuation
Sound attenuation refers to the number of decibels lost by sound after passing through a waterproof transparent film.
For example, a sound attenuation of 3dB indicates a loss of 3 decibels in volume when sound passes through a membrane.
- Thickness
The thickness of a film affects its mechanical strength and sound transmission performance, usually measured in millimeters (mm).
A thinner film (such as 0.12mm) can provide sufficient waterproof protection while maintaining good sound transmission performance.
- Water pressure resistance
Water pressure resistance refers to the maximum water pressure that a membrane can withstand without damage, usually measured in psi (pounds per square inch).
For example, a water pressure resistance of 14psi indicates that the membrane can withstand a water pressure of 14 pounds per square inch.
- Durability
Durability refers to the ability of a membrane to maintain its waterproof and acoustic properties even after long-term exposure to environmental factors such as moisture and pollutants.
- Installation method
Waterproof soundproof film usually comes with a backing adhesive, which can be easily pasted on the device, making installation simple and fast.
- Customizability
According to the needs of different products, waterproof and soundproof membranes can be customized with different specifications and performance to meet specific application requirements.
The application of waterproof and sound permeable film, especially in walkie talkies used outdoors or in harsh environments, is very important. It ensures that the walkie talkie can function properly even in rainy or humid environments, while providing good voice communication quality. The use of this membrane improves the durability and reliability of walkie talkies, making them more suitable for use in diverse outdoor environments, such as construction sites, ocean operations, wilderness exploration, and other scenarios.
When choosing a waterproof and soundproof film, it is necessary to consider its waterproof level, soundproof performance, durability, and compatibility with walkie talkies. High quality waterproof and sound permeable film can effectively extend the service life of walkie talkies, while ensuring stable and reliable communication services in emergency situations.
