| | Bluetooth Speakers:GM-891B |
| Device type | Bluetooth portable speaker |
| Power, W | 2x3 W |
| Frequency response | 90 Hz - 20 kHz |
| Audio Sources | Bluetooth, microSD, AUX - 3.5mm, FM-radio |
| Signal / noise ratio | > 65 dB |
| Number of channels | |
| Speaker | 2x40mm, 4 Ohm |
| Subwoofer | Passive |
| Bluetooth | V2.1; A2DP, AVRCP, HFP |
| USB | |
| microUSB | |
| Wi-Fi Direct | |
| Composite Output | |
| NFC | |
| Number of Audio Input | |
| Headphone jack | |
| Built-in MP3 player | |
| Support for Handsfree | Yes |
| Screen | |
| FM radio | 87,5-108MHg |
| Alarm clock | |
| Additionally | |
| Battery | Li-Ion - 3,7 V, 1500mAh |
| Operation duration | 6 hours |
| Charge time | 4 hours |
| Adapter | microUSB charging 5V / 1.0 A (not supplied) |
| Operating Power Consumption | |
| Stand-by Power Consumption | |
| Color | Black |
| Package Contents | Speaker, Power cable, AUX cable, Manual/Warranty |
| Height, mm | 75 |
| Net weight, gr | 390 |
| EAN13: | 4892116100912 |
| Width, mm | 58 |
| 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 | 20 |
| ITF14: | |
| Height of the box, cm | 22.8 |
| Width of the box, cm | 35.9 |
| Box depth, cm | 36.5 |
| Box gross weight, kg | |
| Net weight of the box, kg | |