Description: Hanging any position of GSM mobile phone,available frequency 900MHZ-1800MHZ,if the phone is sending or receiving a signal,it will flash, meanwhile,it can remind you have a call when you set the ring to vibration,it also can reduce the radicalization to human brain. It's good used for promotion and presentation for your company. Features: 1.A wonderful novelty for CDMA and GSM mobiles 2.Hang on mobile phone 3.When receiving a signal, it will flash in rainbow colors 4.Logo can be printed on its surface 5.Meanwhile sound-indicated can be available by your demands MOQ:5000pcs Delivery Time: 18 Days after all approval Package:1pc/oppbag+paper; 800pcs/ctn; 45x48x50cm; 12kgs