| | Bluetooth Speakers:GM-877B |
| Device type | Bluetooth portable speaker |
| Power, W | 2x5 W |
| Frequency response | 100 Hz - 18 kHz |
| Audio Sources | Bluetooth, USB-flash, micro SD, AUX - 3.5mm |
| Signal / noise ratio | > 80 dB |
| Number of channels | |
| Speaker | 2x50mm, 4 Ohm |
| Subwoofer | Passive |
| Bluetooth | V4.2; A2DP, AVRCP |
| USB | |
| microUSB | |
| Wi-Fi Direct | |
| Composite Output | |
| NFC | |
| Number of Audio Input | |
| Headphone jack | |
| Built-in MP3 player | micro SD, USB-flash |
| Support for Handsfree | |
| Screen | |
| FM radio | |
| Alarm clock | |
| Additionally | AUX input: DC-jack 3.5 mm |
| Battery | Li-Ion - 3,7 V, 1200mAh |
| Operation duration | 8 hours |
| Charge time | 3 hours |
| Adapter | microUSB charging 5V / 1.0 A (not supplied) |
| Operating Power Consumption | |
| Stand-by Power Consumption | |
| Color | Black |
| Package Contents | Speaker, Universal USB-microUSB / audio cable, User Manual, Warranty card |
| EAN13: | 4892514100910 |
| Height, mm | 165 |
| Net weight, gr | 460 |
| Width, mm | 70 |
| Depth, mm | |
| Type of packaging | Color 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 | 43,1 |
| Width of the box, cm | 20,8 |
| Box depth, cm | 49 |
| Box gross weight, kg | |
| Net weight of the box, kg | |