Cold Stone Security Technology Company Limited is a technology company specializing in providing cryptocurrency storage solutions. As of 2023, Coldlar has launched a series of smart hardware wallet products, including the P-series Professional Edition, T-series Card Style, and the latest Ultra series. The market covers multiple countries and regions around the world, including China, Japan, South Korea, the United States, and Southeast Asia. Coldlar Hardware Wallet adopts a "hot & cold separation" architecture and uses multiple data encryption transmission methods such as QR code, Bluetooth, and NFC, to ensure that the private key never touches the network, eliminating the risks of being stolen by network hackers, which has been the safest secure storage of encrypted assets. It now supports over 200 mainstream coins and NFTs.