Feature: Bluetooth-compatible version: Versior.3.0 Frequency: 2.4Hz 2.4835GHz Effective distance: 10m 30ft Battery type and service life: CR2032 x 1 cell / about 6 months 10 times a day Product Size: 48mmx30mmx10mm Color: As the picture show The product is a Bluetooth-compatible remote control self-timer for mobile phones, no need to install any software can be used for iPod / iPhone / iPad, i9220 / i9250 / i9300 / i9500 / i9190 / note2 / note3, millet and other parts of Android 4.1 above system All brands of mobile phones. Built-in button battery can take more than 3000 photos Can be self-timer distance, in the case of no obstruction can reach 60 meters away. With 5 function keys: switch machine,Bluetooth-compatible pairing, camera, Android configuration, IOS configuration. IOS system is only compatible with 5.0 or above Package List: 1 x wireless selfie shutter