3D Stereo in-Ear Headphones

? Features: ? Hands-free calling: Built-in sensitive microphone for easy conversation. ? Easy to operate: switch to music or phone ? Fast and stable pairing: Bluetooth V4.2 + EDR technology, easy to pair with your device. ? Sweat-proof: The outer shell is made of anti-sweat material to ensure high-quality sound during exercise. ? How to pair wireless earbuds with your device? 1. For the first pairing, press the control button on both earbuds for 3 seconds, then release until the LED flashes between red and blue. 2. Search for Bluetooth TWS-I7 on your phone and connect. 3. After pairing, the wireless earbuds will remain in standby. The blue LED flashes once every five seconds. 4. Once paired for the first time, Bluetooth headsets will automatically connect to your mobile device as soon as they are turned on. ?Specifications: Product Name: Bluetooth Wireless Earbuds Bluetooth version: V4.2 + EDR, ultra low power consumption Frequency: 2.4GHz Microphone sensitivity: 42Db Bluetooth range: about 33 feet (10 meters)