Sports Wireless Earphones Bass Bluetooth Headphones Headset Stereo Memory Card - Black

Compatible with all bluetooth enabled smartphones. Ergonomic and lightweight design. High-quality stereo and powerful dynamic bass. Built-in magnets. Micro SD memory card slot. Rechargeable USB. Specifications: Bluetooth Standard: Bluetooth v4.2. Music time: Approx.4 Hours. Standby time: Approx. 100 Hours. Charging time: 2.5 Hours approx. Battery: Rechargeable lithium-ion. Operation distance: 10m.