AT&T 1000 mAh Lithium-Ion Vibrating Hands-Free Speakerphone Battery for Nokia 5100 and 6100 Series Phones

Rating:
Summary: Nice Battery But Bad Idea
Review: The battery itself is very nice, and the idea behind the speakerphone inside the battery is very appealing. The only problem with this is the presentation of the speakerphone addon, specifically the microphone. It does not amplify the voice while ignoring the static/background noises, like most speakerphones.

I *HIGHLY* suggest that if you want a vibrating battery and a speakerphone accessory, you should spend the few extra dollars for a cheaper battery, and the speakerphone desk-charger. THAT item is very useful.