Dynamic reflect: updated randomly every 60s (customized to update every 20s or every 30s).

Feel: The sunburn design of the shell feels very good.

Performance: Products waterproof,cold-proof,shock-proof and high-temperature resistance.

Tamper design: The product has anti-stripping design, the program through the software lock makes it unreadable, cannot change.

Token bar code: Each token has a nine-digit bar code behind it, and each bar code is unique.