SIM Size: Mini, Ringtone Formats: Music Ringtones, Polyphonic Ringtones, Messaging: SMS, Preloaded Apps: Calculator, Stopwatch, Calendar, Alarm, Multi-Touch: No, Loud Speaker: Yes, Audio Player: Yes, Audio Formats: MP3, Video Formats: 3GP, MP4, WAP: Yes, GPRS: Yes, 4G: No, 3G: No, Additional Features: Auto Call Recording, Mobile Tracker, Customer Care Email ID: http://karbonnmobiles.com/contact, Customer Care Number: 1860 500 1492