Samsung SPH-A400 Sleek design where high tech meets high style. Downloads ringers and images with optional Sprint PCS Ringers & More(SM). Advanced full-featured browser is your portable link to the Internet. Includes a Personal Information Manager with address book and built-in calendar. Specifications With standard battery Dimensions: 3.5' x 2.0' x .8' Weight: 3.5 oz. Talk time: Digital, 3.6 hours; analog, 1 hour Standby time: Digital, up to 7 days; analog, 15 hours With extended battery Dimensions: 3.5' x 2.0' x .9' Weight: 4.0 oz. Talk time: Digital, 6.0 hours; Analog, 1.4 hours Standby time: Digital, up to 10 days; Analog, 21 hours Color: Silver Display: 6-line display with 4-color gray scale Mode: Dual Band Wireless protocol: GPS-enabled to support available E-911 Emergency Location Services Service Provider: SprintPCS®