Description The Hoco J121 10000 mAh Power Bank is designed for modern users in Bangladesh who need a reliable and fast-charging backup. With a compact and sleek 16 mm profile, it’s easy to carry, yet powerful enough to charge most smartphones two to three times. Its robust dual USB‑A and USB‑C fast-charging outputs deliver up to 22.5 W, supporting major protocols like PD, QC, FCP, SCP, and AFC. Say goodbye to charging delays—fill your device to 50% in minutes.Recharging the J121 is just as fast via USB‑C (18 W), making it travel-ready. The LED digital display provides clear battery level feedback at a glance. Built with fire-retardant ABS PC, this power bank prioritizes both safety and durability. With a lightweight 232 g build, it’s a perfect companion for students, commuters, and travelers in Dhaka and beyond. 10,000 mAh capacity – multiple charges for phones/tablets 22.5 W fast charging (USB‑A) – PD/QC/FCP/SCP/AFC support USB‑C 20 W in/out – versatile charging & recharging LED digital display – accurate power level indicator Slim design (16 mm, 232 g) – pocket-friendly portability Safety built-in – overcharge, short-circuit, temperature protection Flame-retardant shell – reliable and robust build quality Related
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| Power Input | 100 – 240V ̴ 50/60 Hz |
| Signal-to-Noise Ratio | > 80dB |
| Output power (W) | 100W RMS (IEC60268) |
| Dynamic frequency response range (Hz) | 40Hz – 20kHz (-6dB) |
| Frequency Response | 40Hz – 20kHz (-6dB) |
| Transducer | 1 x 5.25 inch (135mm) woofers, 2 x 1 inch (25mm) Dome tweeters |
| Dimensions (Width x Height x Depth) (cm) | 32.0 x 33.9 x 26.3 |
| Dimensions (Width x Height x Depth) (in) | 12.58 x 13.33 x 10.35 |
| Weight (kgs) | 6.4 |
| Weight (lbs) | 14.11 |
| Aux-In | 370 mV RMS (3.5mm connector) |
| Mic-In | 20 mV RMS |
| Guitar-In | 100 mV RMS |
| Bluetooth Input (dBFS) | -9 |
| USB Input (dBFS) | -9 |
| USB Format | FAT16, FAT32 |
| Bluetooth Profile | A2DP V1.4, AVRCP V1.6(SW), TMAP1.0, PBP1.0 |
| Bluetooth Transmitter Frequency Range (GHz) | 2.402GHZ~2.480 |
| Bluetooth Transmitter Modulation | GFSK, π/4 DQPSK, 8DPSK ,BLE1M, BLE2M |
| Bluetooth Transmitter Power | ≤ 16 dBm (EIRP) |
| Bluetooth version | 5.4 |
| Charging time (hours from empty) | < 3.5 |
| Cabel Type | AC power cable (type varies by regions) |
| Cable Length (ft) | 6.6 |
| Cable Length (m) | 2 |
| Battery Type | JBL Battery 200, Li-ion Battery(7.4V/4722mah) |
| Battery Charge Time (hours) | 3.5 |
| Maximum music playing time (hrs) | 15 |







