Tech Trendz - Smart Bluetooth Sunglasses

Features: Ultraviolet Proof Comfortable to Wear Wireless Headset Power Amplifier Music Low Power Consumption IPX4 Waterproof Stereo Sound Hands Free Calling Tech Specifications: BT Version: 5.3 Wireless Distance: 10 meters Wireless Frequency: 2.4GHZ-2.4835GHZ ISM Band Battery Capacity: 80 MA Battery Type: Lithium ion 3.7V Includes: Wireless Speaker USB-C Charging Cable Instruction Manual