Features:
It is suitable for vehicle navigation, handheld positioning and wearable devices. It can directly replace the Ublox MAX module.
TGM336H-5N this series of modules has the advantages of high sensitivity, low power consumption and low cost. 
The AT6558 is a real sense Liuhe multi-mode satellite navigation chip, including 32 tracking channel, GNSS signal can receive six satellite navigation system, and realize the joint positioning, navigation and timing.
This series of products are in a micro module fourth generation low power single chip AT6558 based on GNSS SOC, supports a variety of satellite navigation systems, including China BDS (Beidou navigation satellite system), the American GPS, the Russian. GLONASS, European GALILEO, Japan QZSS and SBAS satellite augmentation system (WAAS, EGNOS, GAGAN MSAS).
Excellent positioning and navigation functions support the single system positioning of BDS/GPS/GLONASS satellite navigation system, as well as any combination of multiple systems, and support QZSS and SBAS systems.
Built-in antenna detection and antenna short circuit protection.

Specifications:
Support: A - GNSS
Cold start catch sensitivity: -148dbm
Tracking sensitivity: - 162dBm
Positioning accuracy: 2.5 meters (CEP50, open ground)
First positioning time: 32 seconds
Low power: continuous running < 25mA (@3.3 V)

Package Included:
1 x BDS GPS Dual-mode Module