shiyuan SYDT Wireless Headphone

Specificaiton Type: Open Ear Wireless Headphone BT Version:5.0 EDR Frequency: 20HZ-20KHZ Connection Distance: 10 meters/30FT Microphone Sensitivity: -42db Battery: 120mah Play Time:≈5 hours(80% Volume) Call Time:≈6 hours Standby Time:≈120 hours Charging Time:≈1.5 hours Charging Voltage: DC 5V Low Battery Under power-on mode, the headset prompt Dididi every 30 sec when battery is lower than 10%. Reset Press and hold the button for 25 sec. Power On Under power-off mode, press and hold the button for 3 sec until the LED indicator flashes green and white. Prompt: Power on pairing. BT Connection Open your device’s Bluetooth menu and select "OPENEAR Duet". Prompt: connected. Charge Charge the headphones with DC 5V USB adapter. Adapter higher than DC 5V will cause damage to the headphones. The LED indicator will turn from green to white when charging is complete. Power Off Under power-on mode, press and hold the button for 3 sec until the white LED indicator blinks. Prompt: Power off Answer Call Press the button once. What’s in the box Open-ear*1 User Manual*1 Charging Cable*1 Attentions 1.Listening to loud music for a long time may cause discomfort, please use medium volume if possible. Do not use high volume for long periods of time. 2. Using headphones will affect your perception of the surrounding environment. Pay more attention when using headphones. 3. Do not remove or modify the headphone, as this may cause damage or burn out. 4. Do not throw, sit on headphones or immerse them in water. 5. Keep it away from fire, hydration and high pressure equipment. 6. Not suitable for children under 3-year-old containing small parts.