How to use:1.To open the three foot sleeve2.open the three foot blade3.rotating bracket blade fixed buckle，fixed blade4.self standing ，you can remote control shootingFit For Android Bluetooth 4.2length 19cm Extend length 75cmRemote support for Android 4.2Effective distance: 10 metersOperating frequency: 2.4ghzWorking current: 3.5maOperating voltage: 3.6v-4.2vWorking temperature: -10 ~ 40Battery: 60maCharging voltage: DC5.0VStandby time: 3 daysCharging time: 1-2 hoursweight:135g