Are you travel enthusiasts? Are you music lover? This smart sunglasses is ideal for you. It supports Bluetooth music control and voice recognition. Just by touching the spectacles frame， you can control Bluetooth music play and just by saying "Yes / No"， you can answer / hang up a phone. Effectively anti-reflection， this sunglasses would protect your eyes from dazzling sunlight. 

Features: 
Combination of sunglasses and Bluetooth control function， fashion， eyes protection and entertainment 3 in 1. 
Voice prompt and voice recognition， easy to answer / hang up phone by sying "Yes / No". 
Provide the last number redial function. 
Press buttons or touch the spectacles frame to control Bluetooth device， simple operation and convenient use. 
Effectively anti reflection， protecting eyes from dazzling sunlight. 
Cool shape， fashion design， fit for most of face. 

Specifications: 
Bluetooth version: 4.0 
Frequency range: 2.402-2.483GHz 
Bluetooth chip: CSR 
Bluetooth modes: A2DP， AVRCP， HSP 
Transmitting distance: 10m 
Music play time: 3-5 hours 
Calling time: 4-6 hours 
Charging voltage: USB DC 5V 
Charging time: 0.5-1 hour 
Material: Plastic cement 
Color: Black 
Item size: 16.0 * 5.0 * 4.5cm / 6.3 * 2.0 * 1.8in (L * W * H) 
Glasses weight: 32.0g / 1.1oz 
Total size: 17.6 * 9.8 * 5.5cm / 6.9 * 3.9 * 2.2in (L * W * H) 
Total weight: 197.0g / 7.0oz 

Package list: 
1 * Smart sunglasses 
1 Pairs * Ear phones 
1 * Glasses cloth 
1 * USB cable 
1 * User manual (English)