... others to choose Name Silicone Horn Stand for I-phone 4Advantages of horn stand for Iphone 4: 1. made by100% silicone material, all ... phone from water, dust, scratch, bump etc. 4. Slipping the horn speaker onto the iPhone for lo-fi amplification , the Stand adds 13 decibels ... working daysGuarantee period About one years (KC-006)horn stand amplifier speaker for apple iphone 4 Silicone horn for Iphone 5