Huawei U8800/Impulse 4G Combo Rapid Car Charger + Home Wall Charger + USB Data Charge Sync Cable for Huawei U8800/Impulse 4G This USB data cable enables you to connect your cellular phone to your computer for: Wireless internet access, Sending and receiving email, FTP (Uploading and downloading files), Downloading Music / Pictures / Ring tones, Editing your phone book / SMS, Synchronizing calendar entries Built-in short circuit protection for added security Intelligent IC chip inside recognizes a full battery and automatically switch to a saver.