Bluetooth Wireless Earphones Lenovo XT85 II Gaming Earbuds Waterproof Headset Great for Gaming Music Bluetooth 5.3 technology Really powerfull and accurate BASS (enhanced low-frequency sound effect for more accurate listening) Built-in microphone Sound isolation (noise reduction): yes IPX5 waterproof: yes (rain, sweat, dust) On earphone touch control Frequency Response Range: 20 - 20.000 Hz Wireless range: up to 10 m Really low latency: 30 ms delay only Music Time: Around 4 Hours Earphone Battery Capacity : 40 mAh for single earphone Type-C charging time: 1 hour Case Battery life: 4 to 5 full charges of earbuds Case Battery Capacity: 300 mAh LED Battery Life Display Driver Diameter: 13 mm Included: 2x Bluetooth headphones 1x Charging case 1x USB cable 1x User Manual 3x headphone cups (S, M, L size)