Tronsmart Onyx Free True Wireless Bluetooth Earphones
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| Model | Onyx Free |
| Colors | Black |
| Technology | Qualcomm aptX audio technology, cVc 8.0 noise cancellation technology, DSP |
| Input | 5V/500mA max. |
| Chip | Qualcomm® QCC3020, supports aptX, AAC, SBC |
| Bluetooth Version | 5.0 |
| Bluetooth Compatibility | HFP/HSP/AVRCP/A2DP |
| Transmission Distance | Up to 15 meters / 50 feet |
| Water Resistant | IPX7 |
| Battery Capacity | Earphones: 40 mAh；Charging case: 500 mAh |
| Play Time | Up to 7 hours (50% volume): up to 4 hours (100% volume) With the charging case: Up to 35 hours(50% volume) |
| Charging Time | Earphones: 1 hour Charging case: 2.5 hours |
| Driver Unit | 6mm |
| Impedance | 16Ω |
| Microphone Sensitivity | -42dB ± 1dB |
| Dimension | Earbud: 16.4 x 27.2 x 22.3mm / 0.65 x 1.07 x 0.88 inches Charging case: 66 x 32 x 30mm / 2.60 x 1.26 x 1.18 inches |
| Net Weight | Earphone: about 4 g / 0.14 oz ;Charging case: about 36.2g / 1.28oz. |
| Package Contents | 1 x Onyx Free True Wireless Earphones with Charging Case, 1 x Charging Cable, 1 x Warranty Card, 1 x User Manual |