Designed for sleep, sleepbuds is not only tiny headphones, but also reduce noise so that to help you fall asleep and stay asleep all night. Features: The 6mm dynamic driver delivers stable and high-quality sound. In-ear design ensures comfortable wear. Proprietary ear tips are made of soft silicone for a comfortable fit all night, even if you toss and turn or sleep on your side. The headphones feature a built-in 25mAh battery, while the charging case has a 400mAh battery, allowing it to recharge the headphones 6-7 times. For first-time use, manual connection to the device is required; subsequent connections will be automatic. With the upgraded Bluetooth 5.3 chip, lower power consumption, stronger and more stable signal, you can enjoy good sound quality within 10 meter. Finely polished appearance, fit the ear canal, comfortable to wear. Intelligent touch control, easy to answer the phone play songs, wake up Siri. Specification: Material: ABS Bluetooth Version: 5.3 Operating Distance: 10 meters Driver Unit: 6mm Impedance: 16Ω Sensitivity: 100±3dB Frequency Response: 20~20,000Hz Earphone Battery Capacity: 25mAh Charging Box Capacity: 400mAh Charging Time: 1 hour for earphones, 2 hours for charging box Music Time: 4.5 hours Earbud Size(LxWxH): 2.5 x 1.6 x 1.8 cm Charging Case Size(DxH): 5.8 x 2.9 cm Package Content: 1 Pair Earbuds 1 x Charging Box 1 x USB Charging Cable 2 Pair Ear Tips 1 x Manual Please Note: Due to manual measurement, there might be a tolerance in the product size. Due to the lighting effects and