Description: Pure stereo audio: it has rich bass, clear Alto and balanced high notes. 360 degree bass surround sound. The built-in magnet can prevent the wires from winding together and support the TF card; Even if there is no smartphone nearby, you can still enjoy MP3 music and play it with TF card at the same time. Easy to carry: it is equipped with a unique high-end portable bag to protect the Bluetooth headset from damage and loss. Earplugs of different sizes are provided with large, medium and small size gel earplugs, ensuring that they can be worn comfortably and safely even in the most intense exercise. Call vibration & top quality: vibration and voice cues - Bluetooth headset vibrates when you call. Even if you're exercising or in a noisy place, you won't miss any calls. The latest Bluetooth technology and CVC noise reduction, built-in microphone brings stereo and excellent bass, making calls clear and stable. More long-term enjoyment: this Bluetooth headset can provide 100 hours of talk time and 80 hours of music time to help you enjoy a whole day of wonderful music during travel and sports. They're also easy to use, they're very easy to set up, and they can quickly pair with your smartphone and tablet. Retractable earplug: comfortable neck strap design, you can wear headphones around your neck. Retractable earplug - unique cable management design, no longer troubled by tangled wires, you can pull the retractable earphone cable to the required length and retract it when not in use. Specification: Battery: 800MAH Connection: Bluetooth 5.0 Play time: 80 hours Talk time: 100 hours Charging: 3-5 hours Package Includes: 1 piece Bluetooth headset 1 piece USB charging cable 4 pieces silicone earplug tips 1 piece English user manual 1 piece Black EVA portable bag