Features 1.[Safe And Convenient] This BT glasses can be directed to the sound, accurate sound into your ears, no need to wear earbuds earphones, suitable for cycling, running, etc. 2.[HiFi Noise Reduction] BT music glasses are equipped with a premium chip, headset mic and speaker to ensure effective reduction of call noise, restore fidelity. 3.[Long Battery Life] Wireless music glasses with built in 100mAh high capacity battery, charging for 90 minutes and listening to music continuously for 6 hours at 80 percent volume. 4.[Waterproof And Sweatproof] This smart glasses with accuracy technology, IPX5 level waterproof performance, effectively prevent the splash of water, sweat, and brief immersion. 5.[Stable And Compatible] Smart glasses use 5.0 BT solution, with stable performance and powerful functions. Provide high definition call sound quality with high compatibility. specificationItem Type: BT Glasses_x000D_ Material: TP90, PC, TAC_x000D_ BT Protocol: 5.0_x000D_ Charging Time: 90min_x000D_ Built in Polymer Lithium Battery: 100mAh_x000D_ Channel: Dual Speakers, Stereo PackageList1 xBT Glasses1 x Charging Cable1 x Instruction Manual1 x Wiping Cloth