Product Description: BM150 Smallest Mobile Phone - Unlocked 2G GSM with Bluetooth and Dual SIM Unlock 2G GSM Miniature Phone: Experience the convenience of the world's smallest Bluetooth miniature phone. This compact device supports dual SIM Nano cards or one SIM and one small memory card (not included), offering flexibility and ease for users who need to stay connected on the go. Music Player and Bluetooth: Enjoy a seamless audio experience with this compact gadget that doubles as a Bluetooth music player. It provides crystal-clear voice quality and a strong Bluetooth connection, making it perfect for streaming MP3 music from smartphones and tablets. Low Radiation: Prioritize your health with a phone that emits significantly less radiation—only 1/7 of what regular smartphones produce. This makes it an ideal choice for protecting pregnant women and babies from signal radiation, ensuring safe and confident use. Band (2G): The BM150 operates on GSM 850/900/1800/1900MHz frequencies, compatible with 2G, 4G, and 5G SIM cards, provided they support 2G GSM frequency. Please verify that your SIM card supports 2G networks if you plan to use this phone as a standalone device, as some carriers have phased out 2G networks. Voice Changer Feature: Add a playful twist to your calls with the built-in voice changer feature, which requires a SIM card. This innovative function brings novelty and excitement to your communication experience, making every call unique and entertaining. Embrace the versatility and fun of the BM150 Smallest Mobile Phone, a perfect blend of functionality and entertainment in a sleek, compact design.