| | Bluetooth Speakers:GM-879B |
| Device type | Bluetooth portable stereo speaker with FM-radio |
| Power, W | 2x4 W |
| Frequency response | 90 Hz - 18 kHz |
| Audio Sources | Bluetooth, USB-flash, micro SD, AUX - 3.5mm, FM-radio |
| Signal / noise ratio | > 70 dB |
| Number of channels | |
| Speaker | 2x76,2mm, 4 Ohm |
| Subwoofer | Passive |
| Bluetooth | V4.2; A2DP, AVRCP, HFP, HSP |
| USB | |
| microUSB | |
| Wi-Fi Direct | |
| Composite Output | |
| NFC | |
| Number of Audio Input | |
| Headphone jack | |
| Built-in MP3 player | micro SD/USB-flash/AUX-in |
| Support for Handsfree | Yes |
| Screen | 50х11 |
| FM radio | 87,5-108MHg |
| Alarm clock | |
| Additionally | EQ: Class, Jazz, Pop,Normal; Play Modes: ONE, ALL, RANDOM |
| Battery | Li-Ion - 3,7 V, 1800mAh |
| Operation duration | 8 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, USB -DC-jack cable, AUX cable, Manual/Warranty |
| Length, mm | 270 |
| Width, mm | 100 |
| Height, mm | 160 |
| Weight, gr | 946 |
| Type of packaging | Box |
| Unit number per packing | 1 |
| Length of package, cm | 30.7 |
| Width of package, cm | 12.5 |
| Height of package, cm | 18.7 |
| Weight of package, gr | 1175 |
| EAN1: | 4892475101315 |
| Quantity of consumer packages, pcs | 12 |
| Length of the box, cm | 62.7 |
| Width of the box, cm | 38.8 |
| Height of the box, cm | 39.4 |
| Gross Weight, kg | 15.6 |
| Net Weight, kg | 14.1 |
| ITF14: | |