Mobile phone three defense refers to which three defense?
AGM OEPT Standard (Outdoor Environment Performance Test) AGM has added drops, rolling, vibration testing standards, and Raytheon-China internal standards based on the IP-XX seal standard.
Another RPS standard, both (Rugged Phone Standard durable phone standard) is SONIM's internal testing standards.
Now the international popular three anti-standard there are several, one of the most popular IP-XX, the first X refers to the dust, the second X refers to the waterproof.
The so-called three anti, is not waterproof and dustproof, or waterproof and dustproof scratch.
