... maximum 2G TF cardData transmissioncable insert, card reader, Bluetooth function ,Bluetooth voice, Stereo Bluetooth musicImage formatjpggifDirectories500groups,support group callingincoming ringtones, incoming images and ... change music without hand operation.Other functionsMP3,MP4,handfree function, group message sending, voice recording, WAP, handwriting + keyboard input, radio play, Bluetooth ...