Vealvion Wireless Earbuds Bluetooth 5.0 Bluetooth Headphones IPX5 Built-in Mic in-Ear Earphones with Deep Bass Hi-Fi Sound with 500mAh Portable Charging Case for Sports Running (Black)

True Wireless Earbuds for True Musical FreedomKey FeaturesLightweight and Secure: Proprietary GripFit technology keeps your Bluetooth earbuds securely in position, while the ultra-lightweight 0. 16 oz build ensures they'll never weigh you down. Fully Sweatproof: Protection creates a watertight barrier for your wireless headphones against rain and sweat. Unbreakable Connectivity: An LDS antenna and Bluetooth 5. 0 work together to create an almost unbreakable link between your wireless earbuds and device. Built-In Microphone: For clear, hands-free calls. Key SpecificationsAudio Sensitivity: 97db SPLFrequency: 20Hz-20kHzTHD+N: LDS Antenna Return Loss: Typical: -14dB Limit : -12dBMicrophone: Omnidirectional MicAudio Source: iPhone, iPad, Samsung, Blackberry, Nexus, Smartphone, Computer, PC, Notebook, MP4, MP3, etc. What's In The BoxWireless EarbudsMini Charging CaseXS/S/M/L EarTipsMicro USB CableUser ManualNote: If Wireless Earbuds doesn't immediately activate after removal from the case, Press the button on the left twice