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Cisco CP-8821-K9

The Cisco Wireless IP Phone 8821 is a ruggedized, resilient, and secure 802.11 wireless LAN handset that delivers cost-effective, on-premises, comprehensive voice over wireless LAN (VoWLAN) communications for the highly mobile in-campus worker.

Part Number	CP-8821-K9
Protocols	? IEEE 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
Display	? 2.4-in. (6-cm) color display with 240 x 320 pixel resolution
Dimensions (HxWxD)	? 5.2 x 2.2 x 0.7 in. (13.2 x 5.6 x 1.7 cm)
Weight	? Device 4.4 oz (126 g), battery 1.3 oz (37 g), total = 5.7 oz (163 g)
Battery	? Up to 13 hours of voice calling; up to 220 hours standby? Rechargeable Lithium ion 4.35V, 2060mAh smart batteryNote:?Actual battery life varies significantly based on environmental factors, scan mode, and Bluetooth use.
Input power	??Phone: 100 to 240 VAC, ~0.2A, and 50 to 60 Hz? AC adapters (by geographical region)