Dual SIM Functionality: Equipped with two GSM SIM slots, allowing you to use two different networks simultaneously—perfect for separating personal and business calls. Wireless Connectivity: Operates on GSM 850/900/1800/1900 MHz frequencies. Just insert your SIM cards and start calling; no ground wire or landline connection is required. Built-in Battery Backup: Includes a rechargeable lithium battery that ensures the phone remains operational during power outages, providing several hours of talk