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: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. - Intelligent touch control, easy to answer the phone play songs, wake up Siri. - The 6mm dynamic driver delivers stable and high-quality sound. - In-ear design ensures comfortable wear. - The headphones feature a built-in 25m - Ah battery, while the charging case has a 400m - Ah 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. - Specification: Material: ABSColor: Black - Bluetooth Version: 5.3Operating Distance: 10 meters - Driver Unit: 6mm - Impedance: 16Ohm - Sensitivity: 1003d - BFrequency Response: 20~20,000Hz - Earphone Battery Type: 25m - Ah lithium battery - Charging Box Type: 400m - Ah lithium battery - Charging Time: 1 hour for earphones, 2 hours for charging box - Music Time: 4.5 hours - Earphone Size(LxWxH): 2.5 × 1.6 × 1.8 cm - Charging Case Size(Dx - H): 5.8 × 2.9 cm - Please Note:Due to manual measurement, there might be a tolerance in the product size. - Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. - Package Content:1 x Pair of Earphone1 x Charging Box1 x USB Charging Cable2 Pair Ear Tips1 x Manual