Feature:1. Miniature Phone: The world smallest BT miniature cell phone. Supports dual sim Nano cards (or one sim + one Memory card) (not included).This miniature cellphone is a versatile communicating tool for users on the go.2. Music Player and BT: A fun electronic small tool that serves as a BT music player. Provides clear voice and high BT connection for MP3 music players on smartphone.3. Less Radiation: Radiation rate is only 1/7 lower than that of general smartphones, making it the best phone to protect pregnant women and babies from signal radiation. You can use it with confidence.4. Band (2G): GSM 850/900/1800/1900MHz ( suitable for 2G, 4G, 5G Sim Cards, but should support 2G GSM Frequency) Some sim card carriers have cut off 2G networks, please make sure that your sim card supports 2G networks when you use it as a stand alone phone.5. Voice Changer: Change your voice during calls (this feature requires a sim card). This function offers a playful and innovative touch to your communicating experience. The voice changer adds a touch of novelty and excitement to your phone calls.Specification:Item Type: Miniature PhoneMaterial: ABSFrequency Band Suitable for: GSM 2G 850/900/1800/1900MHzDisplay Screen: 0.66 inch OLED / 64x48Standby Time: Approx. 72 hoursBuilt in Battery:Battery 380mAhSupport Multi language: Multi languageMemory Card: Maximum Support 64GB (not included)SIM Card: Standard SIM Card (not included).Package List:1 x Mobile Phone1 x Charging Cable1 x User Manual