vs
4.4Noise control & calls9.3
8.7Battery4.4
Why is Openfree JR-OE2 better than TAT2139?
- Battery life10 h vs 7 h+43%
- Battery capacity120 mAh vs 50 mAh2.4×
- Water resistance (IPx)IPx5 vs IPx4+25%
- Charging time1.5 h vs 2 h+33%
- Driver size16.2 mm vs 13 mm+25%
Why is TAT2139 better than Openfree JR-OE2?
- Active noise cancellingNo · Openfree JR-OE2: Yes
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Open-back | — |
| Driver type | Dynamic | — |
| Driver size | 16.2 mm | 13 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | — | 16 Ω |
| Sensitivity | — | 94 dB |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 10 h | 7 h |
| Total with charging case | — | 28 h |
| Battery capacity | 120 mAh | 50 mAh |
| Charging time | 1.5 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Earbud weight (each) | 12 g | — |
| Protection rating | IPX5 | IPX4 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Features | ||
| Touch controls | Yes | — |
| Hands-free calls | Yes | Yes |
