---
description: Key features of eS1M
---

# Core Features

### <mark style="color:green;">SIM Card and Crypto Wallet Integration</mark>

ES1M introduces an innovative integration between eSIM technology and cryptocurrency wallets, allowing users to possess a single digital phone number directly linked to their personal crypto wallet. Through this seamless integration, users can effortlessly conduct on-chain transactions without needing to switch between different applications or platforms. Utilizing just one number, users enjoy the convenience of various cryptocurrency transactions, including payments for internet services, digital asset transfers, and other blockchain-based payments. This comprehensive integration creates a streamlined, practical, and efficient digital ecosystem.

### <mark style="color:blue;">Lifetime ES1M Service</mark>

The ES1M service is specifically designed to provide long-term convenience by offering a lifetime-valid digital phone number without expiration constraints. Users no longer need to be concerned about phone number expiration dates or the frequent replacements of physical SIM cards. Individuals, businesses, and communities alike can leverage this lifetime service to ensure stable digital identity and uninterrupted connectivity, delivering an ideal solution for users who prioritize practicality, reliability, and consistency in their everyday digital lives.

### <mark style="color:green;">Security and Privacy</mark>

ES1M prioritizes user security and privacy through the "one wallet, one number" principle, representing a unique integration of each user's eSIM number with their exclusive personal crypto wallet. This ensures that phone numbers will never be reassigned to other users after becoming inactive, completely eliminating the risk of data misuse and privacy violations. The underlying blockchain technology provides robust security for all transactions, offering users complete trust and confidence in the security of their personal and financial information.

### <mark style="color:blue;">Unlimited OTP Service</mark>

ES1M provides unlimited One-Time Password (OTP) services, making security verification across multiple digital platforms significantly more efficient and user-friendly. Unlike conventional services that typically impose limits on OTP usage, ES1M places no restrictions on the number of OTPs sent. With this feature, individual users, as well as businesses—particularly those requiring large-scale OTP verifications such as enterprises and digital platforms—can benefit from reliable, stable, and secure access without concerns about usage limitations.
