- Bluetooth 5.0 version advantage with longer using time and stable connection.
- CVC noise cancellation technology with dual microphones provides clear voice calling quality
- Qualcomm high-end chip supports aptX codec audio transmission
- One touch multiple button for music playing, song selecting, voice assistant calling and volume controlling
- Professional toning technology to present real, balanced and superior sound quality
- IPX7 water resistance provides more protection to resist rain and sweat.
- Automatically power on/off, paring and connecting
- 480 mAh charging case with battery indicator provides longer using cycle
- In-ear and flat design avoid dropping
- Three-size ear tips to satisfy with comfortable wearing
- Comply with Android, iOS and windows devices via Bluetooth connection
| Bluetooth version | Bluetooth 5.0 |
| Bluetooth Profile | HSP/HFP/A2DP/AVRCP |
| Bluetooth codec | aptX SBC AAC |
| Color | Dark Grey |
| Bluetooth Chip | Qualcomm 3020 |
| Wireless transmission Range | 10 meters |
| Driver diameter | 16ohm Φ6 |
| Sensitivity | Earbuds 91dB±3dB Microphone -38±3dB |
| Frequency Response | Earbuds 20Hz~20KHz Microphone 50Hz~8000Hz |
| Impedance | 16 ± 15%Ω |
| Signal-to-noise ratio | 61dB |
| Input sound pressure level | 94dB SPL |
| Size | Earphone 25.1x22.8x24.5mm Charging case 55x38x34.5mm |
| Weight | Earphone 4.75g Charging case 33g |
| Operation Time | Standby time 120 hrs Using time 6.5 hrs Charging time ≤2 hrs |
| Battery type | Lithium polymer |
| Earphone battery capacity | 50mAh 3.7V |
| Charging case capacity | 480mAh 3.7V |
| Voltage | DC 5±0.25V |
| Warranty | 12 months |
| Project | Note | File Size | Update | Download |
| User Manual | TWS Bluetooth Earbuds JoyBuds 511 (V1.0) | 1.6 MB | 2020.05.08 |