features: 1. Support GPS, BDS, GLONASS and QZSS multiple satellite systems. 2. Built in low noise amplifier (LNA) to improve reception sensitivity. 3. Built in SAW Filter to enhance noise cancellation performance 4. Support AGNSS function. 5. Support 1PPS function 6. Support serial port communication baud rate range: 4800~115200 (9600 by default) 7. On board rechargeable lithium battery MS621FE, used for saving ephemeris data and hot start after power failure 8. Two LED indicators on board for easy viewing of module operation status This product is a GNSS (Global Navigation Satellite System) module, which supports GPS, BDS, GLONASS and QZSS multiple satellite systems, multi system joint positioning and single system positioning, AGNSS function, built-in low-noise amplifier and acoustic filter, and GNSS module that can provide users with fast, accurate and high-performance positioning experience. Specifications: Product model: L76K GNSS:GPS/GLONASS/BDS/QZSS Chip platform: AT6558R L1 receiver type (number of channels): 32 tracking/72 acquisition L1 receiver type SBAS: not supported A-GNSS: Support Sensitivity (automatic capture): - 148dBm Sensitivity (recapture): - 160dBm Sensitivity (tracking): - 162dBm TTFF cold start: 30s, Autonomous, 5.5s, With AGNSS TTFF (first positioning time) hot start: 2s Position accuracy: 2.0m Speed accuracy: 0.1m/s Acceleration accuracy (Max): 0.1m/s Timing accuracy: 30ns Update rate (Max): 5Hz Default baud rate: 9600bps Product size: 32.5 x 25.5mm color: blue Material: PCB+Metal Package Contents: 1 x L76K GPS Module 1 x PH2.0 5PIN connecting cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.