HTC ChaCha. Display diagonal: 66 mm (2.6 "), Display resolution: 480 x 320 pixels. Processor clock speed: 0.8 GHz. Internal memory: 512 MB. Data network: GPRS, GSM, HSPA, WCDMA, Bluetooth version: 3.0+HS, Bluetooth profiles: A2DP, PBAP. Headphone connectivity: 3.5 mm