Key features
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.
Key design: PIN code is required for product startup.
Token bar code: Each token has a nine-digit bar code behind it, and each bar code is unique.
