DUOER Bluetooth Headphones Earbuds Wireless Bluetooth Headset Stereo Earphone Anti-Sweat Sport Headphones with Charging Case for Most Smartphones;

How to Sync Between Earbuds?
Step 1. Press and hold the button for 3 seconds of either earbud and release after the LED flashes between Red and Blue. (Voice Prompts: Power on)
Step 2. Double tap any one of the earbuds, and wait for 3-5 seconds, the earbuds will search for each other, one of the earbuds will stop flashes when successfully  (Voice Prompts: Your headset is connected)
Step 3. Pairing the earphone with your mobile phone, the product will be in standby status after pairing completed
How to The Wireless Earbuds Pair with Your Phone?
Step 1.For initial use, press and hold the button for 3 seconds of either earbud and release after the LED flashes between Red and Blue. (Voice Notice: Power on)
Step 2. Open the mobile phone Bluetooth and search "i7-TWS", then connect it.
Step 3. Pairing the earphone with your mobile phone, the product will be in standby status after pairing completed, Blue LED flashes 5 seconds each time. (Voice Notice: Connected)
Package included：
2 x Bluetooth headphones
1 x Headset Charging Case
1 x Micro USB Charge Cable
1 x User Manual