How to use two simultaneously?
(You also can refer to video on https://youtu.be/hh_2bmBf_4Y)
1. Power on/ off
Press the button for about 3 seconds until LED turn blue/red.
2. Activate pairing mode
Power on and press the button twice quickly and can see LED flashes red and blue alternatively.
If you received the version with FOUR replacement ear tips, please follow the 2 steps below.
If you received the version with SIX replacement ear tips, please follow only step2.
1. Pair two to each other
Active pairing mode of two earbuds, wait for 10 seconds until both LED indicators turn off.
Power off anyone. (If LED keep flashing over 10 seconds, pls press each button twice quickly)
2. Connect to a device
Press the button of LEFT earbud for about 5 seconds until LED indicator flashes blue &red alternatively,
turn on Bluetooth on your device, search for "IO-20(L)" and click it to connect. Turn on the RIGHT. Dual ear mode is ready.
1. Once two paired(step 1), they will automatically pair next time so you can skip step 1.
2. Under dual ear mode, turn off anyone, the other will also turn off.
BT protocol: HFP/HSP/AVRCP/A2DP
Transmission distance: 10M (33ft)
Noise cancellation: CVC8.0
Battery capability: 50mAh
Charging voltage: DC 5V
Standby time: 120h
Music time: 4h
Talking time: 3h
Charging time: 30min
Capability of charging case :400mAh
Charge time of case:2h
- 【ABSOLUTELY WIRELESS】Without any cords, IOUIOU wireless earbuds set you free from tangled headphone cords. Just freely enjoy yourselves in music when you are exercising, working, studying, cooking, etc.
- 【ADVANCED TECHNOLOGY】Can be used to answer/reject/make phone calls and interact with voice assistant(e.g. Siri) without touching your phone. Advanced Bluetooth 4.2 + EDR create stable connection and top grade sound. CVC 8.0 technology largely reduces noise around. Also are resistant to sweat and water droplets.
- 【STEREO AUDIO】These wireless earbuds can be used SIMULTANEOUSLY/ separately. They also connect to two devices at the same time under single/ dual ear mode.
- 【LONG PLAYTIME, EASY TO CHARGE】Have 4 hours music time per 30-min charging. Come with portable charging box and can be charged anywhere at anytime.
- 【RISK FREE】We offer unconditional 30-day FULL REFUND guarantee, 12-month warranty and lifetime customer support. Any problem, pls feel free to contact us via email. We are always ready to help you.