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| Product Specifications | |
| Brand | Green Alliance |
| Model | CM309 |
| How to Use | Car Hands-Free |
| Time to Market | 2021-06-13 |
| Origin | Mainland China |
| Bluetooth Version | 5.4 |
| Warranty Period | 12 Months |
| Headphone Material | Metal |
| Smart Type | Other Smart Features |
| Headphone Category | True Wireless Earbuds |
| Noise Reduction Type | Passive Noise Reduction |
| Does It Support Two Mobile Phones at the Same Time? | Does Not Support Simultaneous Connection of Two Mobile Phones |
| Color Classification | [Standard Model] Bluetooth 5.4★Cd Level Sound Quality★Filter Out Noise/Current Sound,[Tf Card Model] Bluetooth 5.0★Cd Level Sound Quality★Filter Out Noise/Current Sound★With Multi-Function Buttons,[Multi-Function Button Model] Bluetooth 5.4★High-Fidelity Sound Quality★Plug and Play★Rgb Colorful Lighting Effects |
