| | Bluetooth Speakers:GM-990B |
| Power, W | 2x5 W |
| Frequency response | 65 Hz - 20 kHz |
| Audio Sources | Bluetooth, USB-flash, micro SD, AUX - 3.5mm, FM-radio |
| Signal / noise ratio | > 80 dB |
| Number of channels | |
| Device type | Bluetooth portable speaker with Power bank and TWS |
| Speaker | 2x45mm, 4 Ohm |
| Subwoofer | Passive |
| Bluetooth | V4.0; A2DP, AVRCP, HFP, HSP |
| USB | |
| microUSB | |
| Wi-Fi Direct | |
| Composite Output | |
| NFC | |
| Number of Audio Input | |
| Headphone jack | |
| Built-in MP3 player | USB-flash / micro SD / AUX-in |
| Support for Handsfree | Yes |
| Screen | |
| FM radio | 87.5-108 MHg |
| Alarm clock | |
| Additionally | Power bank, TWS mode |
| Battery | Li-Ion - 3,7 V, 1500mAh |
| Operation duration | 6 hours |
| Charge time | 2-3 hours |
| Adapter | microUSB charging 5V / 1.0 A (not supplied) |
| Operating Power Consumption | |
| Stand-by Power Consumption | |
| Color | Black |
| Package Contents | Speaker, USB -microUSB cable, Audio cable AUX, Manual/Warranty |
| Net weight, gr | 830 |
| Height, mm | 105 |
| EAN13: | 4892378101313 |
| Width, mm | 89 |
| Depth, mm | |
| Type of packaging | transparent box |
| Packing height, mm | |
| Packing width, mm | |
| Packing depth, mm | |
| Package gross weight, gr | |
| Quantity of consumer packages, pcs | 12 |
| ITF14: | |
| Height of the box, cm | 25.5 |
| Width of the box, cm | 31.1 |
| Box depth, cm | 56 |
| Box gross weight, kg | |
| Net weight of the box, kg | |