Asmart center 1.54" S18 Smart Watch Phone Touch Screen Bluetooth GSM Smart Watch support MP3 FM with Sim Card Slot (black) Newest S18 fashion watch phone,make your life more easier Network mode: GSM, Support band: 2G: GSM 850/900/1800/1900 Support bluetooth version: 3.0,single SIM card Call Records: recceived+called+missed call Support FM function ,mp3 mp4, enjoy the music every where