is slid open, the Dolby powered speakers are shown. Most people have been underwhelmed with the speakers stating that "The overall volume of the speakers was enough to fill a small room, but not 'take the party to another level,' as HTC claims on its website." Engadget writes that "there's a lot of promise here, but unless the phone delivers the extra size and weight simply won't be worth it. Unfortunately, we're here to report... that they're simply not worth it." Smartphone connectivity The device runs on AT&T's 3G network. It also offers WiFi as another means on connection to the internet. The phone comes with built-in Bluetooth 2.1 and a MicroUSB slot to plug in a MicroUSB to USB wire which can be used to connect the device to the computer or to the wall charger. WiFi tethering, initially not supported, has been added with Windows Phone 7.5 but AT&T has yet to push the firmware update from HTC. Battery and power The Surround comes with a 1230mAh battery is user-replaceable by removing the back cover. The average talk and standby time are 4.16 and 255 hours respectively. Software The device, shipped with Windows Phone 7 as its operating system, was updated in September 2011 to Windows Phone 7.5 codename Mango. It has a number of HTC exclusive apps available. References External links Official HTC 7 Surround homepage Windows Phone devices HTC smartphones Mobile phones introduced in 2010