Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2/3/Pi 4 (Mini Kit)It's 10PM, do you know where your Raspberry Pi is? If you had this GPS HAT, you would! This new HAT from Adafruit adds our celebrated Ultimate GPS on it, so you can add precision time and location to your Raspberry Pi Model Pi 3, Pi Zero, A+, B+, or Pi 2, 3, & 4 Here's the low down on the GPS module: 165 dBm sensitivity, 10 Hz updates, 66 channels Only 20mA current draw Built in Real Time Clock (RTC) slot in a CR1220 backup battery for 7 years or more