Appearance size: 14.5 * 16 * 0.3cm Product weight: 43g Target audience: the general public, adults, and the elderly Applicable platform: fully compatible Wearing method: head worn Wireless distance: 5m (inclusive) -10m (inclusive) Operating method: button type Communication function: supported Running memory: none Compatible platform: Apple Android, all platforms Additional functions: Bluetooth call music interaction Packaging list: Host data cable Glasses bag cloth instruction box