Sleep Pro inear earbuds designed for quiet, comfortable listening and reliable wireless performance. Key benefits Comfortable sealed fit: Three sizes of silicone ear tips fit the ear concha for a balanced, comfortable seal that reduces ambient noise and improves passive isolation. Clear audio and stable connection: Bluetooth 5.3 provides a stable wireless link for bilateral stereo playback with wide device compatibility. Long portable use: Up to 4 to 6 hours of playback on a single charge and up to 30 hours total with the charging case, plus support for wireless charging for convenient ups. Splash resistance for daily use: IPX4 water resistance protects against light splashes and sweat during daily activities. Main features Ergonomic inear design with three silicone tip sizes for a secure, pressurebalanced fit. Passive noise reduction rated at approximately 24DB to reduce background sounds for quieter listening. Bluetooth protocol 5.3 with a transmission range up to 25 meters for flexible, untethered use. Bilateral stereo output for left and right channel audio. Durable shell made of PC and ABS materials. Rechargeable battery life typically 4 to 6 hours per earbud; extended playback up to 30 hours when using the included charging case. Supports wireless charging and wired charging via included USB data cable. IPX4 splash resistant for everyday scenarios. Practical use scenarios Travel and commuting: Reduce cabin and transit noise while listening to music or podcasts during flights, trains, and bus rides. Work and study: Create a quieter environment in open offices or study areas to help focus on audio content and reduce background distractions. Rest and light sleep: Use the sealed, comfortable fit to minimize ambient noise when attempting short naps or resting in noisy environments. Specifications (selected) Usage: Inear Bluetooth protocol: 5.3 Transmission range: 25 meters Noise reduction: approximately 24DB passive isolation Ear configuration: bilateral stereo Waterproof rating: IPX4 Material: PC and ABS Battery life: 4 to 6 hours per charge; up to 30 hours with charging case Package contents 1 Sleep Pro earplugs 1 USB data cable 1 User manual This product combines a comfortable sealed fit, stable Bluetooth 5.3 connectivity, and long battery runtime to provide a versatile option for everyday listening in a variety of settings.