4G LTE Cigarette‑lighter Vehicle GPS Device – Plug and Play & Voice Monitoring

The MV77G is a practical GNSS tracker styled as a car charger, simply plugged into vehicle cigarette‑port for quick setup. Its dual‑USB ports can charge other onboard electronics. Besides one‑touch SOS emergency alarm, it enables remote voice listen‑in to capture in‑car ambient sound. Built on 4G+2G dual‑network, it works under 9‑32V with 50mAh backup battery for stable overall performance.

Product Features

Plug and Play

Install instantly to save time and installation expenses.
ACC Status Detection

Capture vehicle ACC status for accurate activity records and asset supervision.
Remote Voice Monitoring

Remotely listen to onsite sounds, confirm safety around tracked assets.
Power External Devices

Rapidly power external electronic devices.
SOS Emergency Call

Send urgent alerts with one tap, get assistance when meet emergencies.
Plug Out Alarm

Alert you instantly if the tracker gets unplugged to prevent tampering.
Trajectory Playback

Replay 180 days route to trace asset paths and secure your assets.
Geo-fence

Get alerts for unauthorized zone crossings, restrict vehicle activity range.
Real-time Tracking

Monitor your asset location live, keep full control all the time.
GNSS+LBS Positioning

Precise satellite positioning, LBS backup when satellite signals drop.
Overspeed Alarm

Trigger alerts when speed exceeds limit, manage reckless driving risks.
Multiple Anti-theft Alarms

Movement, vibration and ignition status alarms to guard your vehicle around the clock.

Product Specifications
Key Features
Download (Manual /Catalog)

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Device Param

Model	MV77G
Demension	85mm(L)49.2mm(W)26mm(H)
Weight	41g
Working Voltage	DC 9V - 32V
Working Temperature	-20℃ - 75℃
Working Humidity	10%-85%RH
Built-in Memory	3000pcs GPS data can be stored at network blind area

GNSS

Hot/Cold Start	<1s，<32s @ Open Sky
GNSS Antenna	Built-in Ceramics GNSS Antenna, 25mm25mm2mm
Positioning Type	GPS+GLONASS+BDS+LBS+AGPS
Tracking Sensitivity	-162dBm
GPS Channels	32
GPS Frequency	L1: 1575.42±1.023MHz
BDS Frequency	B1:1561.098±2.046MHz
Accurancy	Location accuracy: <10m（1σ）
	Timing accuracy: <30ns（1σ）
	Speed accuracy: <0.1m/s（1σ）

Cellular

Technology	2G GSM+4G LTE CAT1
Working Frequency	GSM: 850/900/1800/1900MHz
Working Frequency	LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66; LTE-TDD: B34/B38/B39/B40/B41
Communication Module	SIMCOM A7670G
Cellular Antenna	Built-in, FPC

Power

Battery

3.7V 50mAh Lion Polymer battery

Working Current

12V/65mA

Sleep Current

12V/Average 10mA

Interface

SIM Card	Nano SIM Card
Firmware Upgrade	OTA Upgrade
LED indication	GSM LED
	Charging LED
	GPS LED
Charging Port USB-A	DC: 5V 2A/9V 2A
Charging Port USB-C	DC: 5V 2A/9V 2A