Arrela Hornbill Phone Selfie Mount, Portable Self-portrait Bottleneck Holder with Separate Bluetooth Remote Shutter for iPhone 6S/6S Plus/6/6 Plus/5S Samsung Galaxy GoPro H1 Bottleneck Design. Can be installed on the bottle (Dimensions: 29mm C 33mm) as the bottle cap. More convenient to carry and install. Bionics design imitate the hornbill mouth. Hornbill, born with strong biting force, won't drop its biting items. Firmly fixed phone, never fall off. ABS Hard Plastic for fixation +TPR Soft Plastic for protection. More firm fixed, at the same time, better to protect your phone. Adjustable holder from 40mm to 150 mm, suitable for smartphone from 3.5 inch to 5.5 inch. Perfect for iPhone 6s/6s Plus/6/6 Plus/5s/5c Samsung Galaxy, most of the smartphone, even iPad mini 4/3/2 Separate Bluetooth Remote Shutter. Usually magnetic adsorption on the shaft, also can use the controller separately or alone. Perfect compatible with iOS and Android. Orifice valve design. Free adjustment angle. Standard 1/4 screw-socket, can take off the phone holder to install other product, like GoPro.