Description
LENOVO X9 TWS Earbuds Wireless Bluetooth Headphones 4XD1R31390
Technical specifications
| Battery capacity | Earphones: 40mAh | Charging case: 500mAh |
|---|---|
| Usage time | Up to 7 hours (without ANC), up to 36 hours including case |
| Fast charging | Approximately 1.5 hours for full charge |
| Wireless connection | Bluetooth 5.3 | Operating range up to 10 meters |
| Speakers (drivers) | 12.2 mm diameter – for rich and balanced sound |
| Frequency range | 20Hz – 20kHz (full hearing across the entire sound range) |
| Audio volume | Up to 92 decibels – for loud and accurate listening |
| microphone | 3 built-in microphones with smart noise filtering |
| Smart control | • Double press – play / stop • Long press – switch between ANC / transparent mode / noise cancellation • Triple press – switch between devices (pre-set) • Long press on both headphones – mute microphone |
| compatibility | Windows 10/11, Android, iOS, Chrome OS |
| Accessories included | 3 pairs of adapters (L, S, XS), user manual, warranty poster |
| color | Thunder Grey |
| weight | Headphones only: 47g | With packaging: 123g |
| Packaging dimensions | 107 × 106 × 37 mm |
| Terms of Use | Temperature: 5°C to 35°C | Humidity: 20%–90% |
| responsibility | year |
| Standards and approvals | CE, FCC, BQB, BIS, RCM, and more |









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