- 360° Total Light Blockage: This sleep mask goes beyond a basic cover with pronounced 3D eye contours and an underlying light-blocking strip. Designed to prevent light from entering from any angle, it ensures uninterrupted sleep with 100% light blockage. - 3D Zero Pressure Eye Mask: Deep 3D eye contours provide ample space without applying pressure on your eyelids or lashes. Additionally, the triangular area designed for the nose bridge offers comfort for those with nasal congestion. The mask comfortably fits your face, allowing you to breathe easily. - Enhanced 5.4 Bluetooth Headband Sleep Mask: The upgraded 5.4 Bluetooth version features a built-in microphone and speaker for phone calls and audio, offering improved connection range and clarity. Enjoy smooth, uninterrupted calls and music playback within a 10-meter range. - 15-Hour Battery Life & 3-Stage Timer: Experience up to two nights of continuous audio playback to enhance your sleep. The three timer options help you alleviate daytime fatigue: a 30-minute power nap, a 90-minute meditation session, or a 120-minute deep sleep mode. - Improved Comfort and Convenience: Our sleep mask eliminates the need for Bluetooth devices with 38 white noise options. The headband's increased elasticity accommodates a wider range of head sizes (20''-27''). The extended Velcro ensures a secure fit to prevent slipping, while an upgraded design prevents hair tangling when removing the mask. Practical Use Scenarios: 1. Perfect for travelers who need to sleep on-the-go while blocking out light and noise. 2. Ideal for people working night shifts who need restful days without interruptions. 3. Great for meditation or relaxation sessions in noisy environments. Experience superior comfort and functionality with this versatile sleep mask, designed to enhance your overall sleep quality.