| Bluetooth Standard | Bluetooth v5.3 |
| Waterproof Standard | IPX-3 |
| Headphone Form Factor | In ear |
| Touch Screen | NO |
| Battery Indicator | Digital Display |
| Chipset | Bluetrum |
| Material | ABS |
| Brand Name | OEM |
| Place of Origin | Guangdong, China |
| Private Mold | NO |
| Battery Capacity(mAh) | 25mAh*2 |
| Product Name | Air 31 Transparent In-ear Earphone |
| BT Version | V5.3 |
| Working Time | 2hrs |
| Charging Time | 1 hrs |
| Battery Box Capacity | 150mAh |
| Transmission Distance | 10M |
| Colors | White/Black/Green/Pink/Blue |
| Package | OPP Bag |
| Keyword | Gift Promotional Products |
| Selling Units: | Single item |
| Single package size: | 7X6X4 cm |
| Single gross weight: | 0.120 kg |