Feature:1. HiFi MUSIC: Featuring a fully open ear design and excellent sound quality transmitted directly through bone conduction. The sound is clear, powerful in volume and rich in bass, with 360 HiFi stereo superior sound quality.2. EAR PROTECTING: The open ear headphones will not enter your ears. Ultra lightweight and comfortable to wear for long periods of time, they won't fall off when exercising, providing a long lasting listening experience while protecting your ears.3. WIRELESS BLUETOOTH: Supports touch control and wireless device connection, including cell phones and tablets. It is very convenient to open the charging compartment to connect automatically.4. STRONG DURABILITY: The earbuds use Type C charging port, charging time is less than or equal to 30 minutes, and charging compartment is about 1.5 hours, able to play music continuously for 8 hours. Ultra low power consumption, ultra long battery life, ultra low latency, ENC call noise reduction.5. LIFE WATERPROOF: With IPX7 waterproof technology, it can effectively prevent water, sweat and rain damage, perfect for daily life or sports, more reliable and convenient to use.Specification:Item Type: EarbudsMaterial: ABSEarbuds Built In Battery: 2x40mah Lithium Battery Charging Compartment Built In Battery: 300mah Lithium Battery Bluetooth Protocol: V5.4Impedance: 20Speaker Sensitivity: 102db 3dbFrequency: 2.4GHzSpeaker: 16mmTransmission Distance: 10m / 32.8ftStandby Time: 120hMusic Time: 8h.Package List:2 xEarbud1 x Charging Compartment1 x Charging Cable1 x Instruction Manual