Users will need to provide their own Arduino Pro Mini and the hardware features a 1.4 W, 8 Ohms, Texas Instruments TPA2005D1, 14 bit ganged PWM, PWM 8 kHz low pass smoothing filter all powered by ...

So, with the Seeeduino Nano, you can simply plug in one Grove I2C module in the dedicated I2C connector instead of having to figure out which pin ... a compact Arduino Uno which is fully compatible ...