18cm, fold flat for easy storage, extending the length of 75cm, to meet the needs of the self-timer. Width 5-8.2cm compatible smart phones, most mobile phone models to adapt to the market,remote control operation more convenient, Bluetooth, wider adaptability.Free expansion, easy and convenient . Free telescopic fashion design, the self-timer lever up to 75CM . Bluetooth Self-timer button . Remote control distance of up to 10 meters. Self stylish and convenient Bluetooth button, paired with the phone with just one touch, you can take the picture, so you want to how to shoot on how to shoot, no longer have to be locked timed shooting.