BlackBerry 8820 Basic Properties Supported Bands: 850/900/1800/1900 MHz, Mobile Nickname: 8820, Network Connection: GPRS/EDGE, Standard Configuration Battery: 1400mAh, Call Time: 300 minutes, Standby Time: 520 hours, Storage Memory Capacity: 64MB Flash; RAM 16MB, Release Date: 2007-7-1 0:00:00, Standard Configuration: Lithium Battery (1400mAh), Charger. BlackBerry 8820 Appearance Design Body Color: Black, Style: Straight Board, Product Dimensions: 114 × 66 × 14mm, Product Weight: 134g. BlackBerry 8820 Display Screen Main Screen Resolution: 240×320 pixels, Main Screen Color: 64K colors. BlackBerry 8820 Expansion Performance Browser: WAP 2.0/xHTML, HTML, Bluetooth Built-in: Bluetooth 2.0, Data Line Interface: miniUSB, Expansion Card: micro SD (T-Flash), Wi-Fi.