| Features | |
| Supports Bluetooth V4.1 High fidelity stereo sound effect Supports sweat-proof， rain-proof and wind noise reduction Can connect 2 mobile phones simultaneously Say "Yes" or "No" to pick or reject call， add convenience to your life Custom fit in-ear design ear buds ensure long lasting comfort in rigorous environment | |
| General Specs | |
| Brand & Model | Bluedio S3 |
| Bluetooth | Bluetooth V4.1 |
| Protocal | A2DP， AVRCP， HSP， HFP |
| Transmission Range | Up to 10m |
| Frequency | 2.4-2.8GHz |
| Frequency response | 20-20kHz |
| Music/ Talk Time | Up to 5 hours |
| Standby time | Up to 180 hours |
| Operating Temperature | -10→-50→ |