Bluetooth Smart Glasses V5.3 Wireless Sunglasses HIFI Call UV Protection Outdoor Motorcycle Phone Mount Does it come with backup

Does it come with backup battery support

433 MHZ REMOTE BACKUP: The physical remote functions independently of your internet connection

ensuring a neat appearance without revealing what's underneath

Compact & Simple Installation

Will this line work with my specific brand of trimmer without adjustments

Bluetooth Smart Glasses V5.3 Wireless Sunglasses HIFI Call UV Protection Outdoor Motorcycle Phone Mount Does it come with backupBluetooth Smart Glasses V5. 3 Wireless Sunglasses HIFI Call UV Protection Outdoor Intro Experience cutting edge audio and stylish eyewear with Bluetooth V5. 3 smart glasses. Perfect for outdoor sports, hands free calls, and high fidelity music, these sunglasses provide UV protection and modern technology for men and women. Key Features Bluetooth V5. 3 Wireless Audio Enjoy stable, high quality music playback and hands free calls with advanced Bluetooth