Features 1. True active noise reduction technology: activate the active noise reduction function, reduce external noise, continuously enjoy music, and be undisturbed. 2. True Wireless: These TWS earplugs allow you to discover the freedom of wireless lifestyles by listening to music, managing calls, or exercising. 3. Professional sound effects: Professional sound effects provide seamless and excellent sound effects anytime, anywhere. The Bluetooth earplugs adopt an in ear design and a composite diaphragm dynamic coil unit, making the sound full and thick, with natural hearing, restoring the authenticity of audio and the dynamics of sound. It feels like hearing it on site, providing you with realistic sound. 4. Comfortable fit: The Bluetooth wireless earbuds adopt a lightweight design that conforms to ergonomics, providing a comfortable fit to your ears; Equipped with silicone earmuffs, providing personalized fit and comfort, suitable for all day wear, painless. They have good fit and can be firmly worn on your ears even during exercise or running. 5. Wide compatibility: These Bluetooth earphones are compatible with smartphones, tablets, and laptops using iOS 9.0/Android 5.0 or higher (not compatible with smartwatches). You will enjoy the convenience brought by these sports headphones. Specification Transmission rate: 24MBPS Long talk time: 4-5 hours Listening to music for 4-5 hours With charging case: 42 hours of playback Input voltage: DC5V 1A (maximum) Charging time: 1.5 hours Standby time: 150 hours Input voltage: DC5V Input current: 1A Output voltage: 5V/160mA (maximum) Output current: 2.1A Color: Black, White, Gold Size: 14 x 10 x 3.5 cm Weight: 160 g Package Include: 2x TWS earplugs 1x instruction manual 1x charging cable 1x charging case