CoolWallet Version 1 specifications 【 Hardware】①. Form factor: credit card size 85.6(L) x 53.98(H) x0.8(T)mm ②. Display: Eink e---paper;segmented; blackwhite color; contrastratio 7:1; ~180 viewangle; 24.6(L) x 21.9(H)mm view area; plastic material ③. Button: 1 metal dome button; >100,000 pushes; tactile feedback ④. Battery: 1 lithium ion rechargeable battery; 3V; 10mAh; 500 recharging cycles and two years battery life. ⑤. Battery charging l NFC: 1 hour from 20% to 85%, 4 hours full charge ⑥. Communication interface l Bluetooth: BLE 4.0; 10 meters proximity distance l NFC: 0~1cm proximity distance ⑦. Power consumption: Min 30 days for standby or 30 transactions ⑧. Working temperature: 10C-40C ⑨. Storage temperature: (---)10C-50C ⑩. Secure Chip: Common Criteria EAL5+ certified l Temper proof l True random number generator l Hardware Crypto Accelerator 【 Functions】①. Bitcoin specification supported: 🔹Bitcoin algorithm:Support transaction signing algorithm ECDSA with specified elliptic curve secp 256k1 🔹 BIP---32: HD Wallets 🔹BIP---44:Support upto 5 accounts, each account includes upto 2^32 external and internal Bitcoin transaction address ②. Generateseedon---card or import via communication interface ③. Strong authentication and secure---channel with wallet applications ④. OTP algorithm: OATH HOTP ⑤. Watchdog: Alert when lostsignal 【Supported Software】①. CoolWallet iPhone App via BLE communication ②. CoolWallet Android App via BLE communication
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