1. For first time use, please tap the device to connect on a cellphone. Earbuds will auto-reconnect to cellphone once powering on after then.
2. The weight of Haylou GT1 Pro is measured by Liesheng Electronic Lab, yet practical weight may be a little bit different.
3. How to measure battery life: top up Haylou GT 1 Pro then set the volume to 50%. Circularly play a song until earbuds power off and record the period length. Practical battery life may vary with volume and other use situations.
4. One film: 2 hours, one drama: 35min, one track: 4min.
5. Please activate quick setting before waking up voice assistan.
6. For more tech parameters of Bluetooth 5.0 chipset, please refer the official site of Bluetooth SIG, link: www.bluetooth.com
7. Liesheng Lab measures all the above data.