Smart K3 Sunglasses Bluetooth Sunglasses

Model: k3 material :abs+ silica gel chipset: ac6936d speaker: 1506 battery type: lithium polymer battery capacity:110mah version: v5.0 compatible system:ios/android charging time:2-3h lens: three-layer coating anti-blue ray lens, high hardness anti-scratch colour black size: approx.180 x 75 x 55mm/7.1 x 3.0 x 2.2 inch weight: 41g control one key(right) major function: call/bluetooth music/anti-blue lens