D
djohnsonAug 13, 2025
Why won't my BOLTUNE BT-BH021 Headphone earbuds turn on?
- Nnicholas70Aug 13, 2025
If your BOLTUNE Headphone earbuds won't turn on, the most likely cause is a low battery. Please charge them.
To Next PageTo Next PageWhy won't my BOLTUNE BT-BH021 Headphone earbuds turn on?
If your BOLTUNE Headphone earbuds won't turn on, the most likely cause is a low battery. Please charge them.
How to pair my BOLTUNE BT-BH021 earbuds with my device?
To pair your BOLTUNE Headphone earbuds with your device: * First, ensure your device is turned on and its Bluetooth function is activated. * Next, put the earbuds into pairing mode as instructed in the “Pairing” section.
What to do if my BOLTUNE BT-BH021 earbuds are not charging?
If your BOLTUNE Headphone earbuds are not charging: 1. Ensure that you place the earbuds properly into the charging case. 2. Make sure the charging case itself is fully charged.
General| Model | BT-BH021 |
|---|---|
| Type | Over-Ear |
| Connectivity | Bluetooth 5.0 |
| Impedance | 32Ω |
| Driver Diameter | 40 mm |
| Frequency Response | 20 Hz - 20 kHz |
| Charging Time | 2 hours |
| Sensitivity | 105 dB |
| Water Resistance | IPX4 |
| Features | Built-in Microphone, Foldable Design |
