The Horn for the iPhone 4 works to instantly amplify the sound of your phone without detracting from its functioning in a single way! Available in black, this mobile phone accessory will stylishly match your phone & will boost the noise from the speaker by up to 13 decibels. The difference in sound is enormous, but the effect of it on your phone is negligible. The concept of the horn is considered outdated but this contemporary, updated use of it brings it straight back to the future. It operates perfectly as a phone stand when out of use, & is small & discreet. & because of its small size, the iPhone can even be charged without removing the Horn. Lightweight & portable, it can be considered a genuine must-have for the serious iPhone user. Dimensions: 5cm x 10 x 6.7cm