Unilateral Mini Hanging Earhook Painless Bone Conduction Bluetooth 4.1 Headset Portable Sports Headset - Black Hand Tools Lens Diameter 77mm Model Adjustable

Lens Diameter 77mm Model Adjustable ND2-400 Material Aluminium alloy Quantity 1 piece Compatible Brand Sony Canon DSLR Nikon Packing List 1 x Adjustable ND2-400 filter

Class 10 performance—leverages UHS-I technology (U1 or U3

Built-in 80 mAh battery with 25-day standby / 7-day active battery life

1)Time display

Unilateral Mini Hanging Earhook Painless Bone Conduction Bluetooth 4.1 Headset Portable Sports Headset - Black Hand Tools Lens Diameter 77mm Model AdjustableCreative design, comfortable to wear No earbuds design really does not hurt headphones The ear mounted design is ergonomically shaped and conforms to the auricle design. It evenly disperses the weight of the headphones, and is also comfortable to wear for a long time. It is stable and safe. Find your own comfort Meet the habits of different people. Left and right ears are free to change, and the answer is no longer limited. Innovative design, wearing