| Brand | Bluedio |
| Model | I4 |
| Quantity | 1 |
| Color | Black + silver |
| Bluetooth Version | V3.0 |
| Ear Coupling | Wireless and Bluetooth |
| Talk Time | 2 Hour |
| Standby Time | 130 Hour |
| Operating Range | 10 meter |
| Compatibility | V2.0 |
| Microphone | Yes |
| Supports Music Format | MP3 |
| Power Supply | Built-in Battery |
| Compatible With | NO |
| Built-in Battery Capacity | 80mAh |
| Other Features | Interface: 3.5mm audio jack; Bluetooth V3.0、 compatible with V2.1 / V2.0; Wireless frequency: 2.4~2.48GHz; Transmission power: Class 2; Transmission range: Maximum 10 meters; Supports Bluetooth stereo、 calling、 next and previous music; Pause / play、 volume control; Supports voice dial and tail number redial |
| Packing List | 1 x Bluetooth earphone 1 x Earphones (58cm-cable) 1 x USB cable (90cm) 1 x Chinese / English user manual |