HTC HD mini. Display diagonal: 81.3 mm (3.2 "), Display resolution: 320 x 480 pixels. Internal memory: 384 MB. Data network: 3G, EDGE, GPRS, GSM, WCDMA, Bluetooth version: 2.1+EDR, Bluetooth profiles: A2DP, AVRCP, BIP, BPP, DUN, FTP, GAP, GOEP, HFP, HID, HSP, OPP, PBAP, SPP. Headphone connectivity: 3.5 mm. Audio formats supported: AAC, MP3, WAV, WMA