The T-WATCH-S3 is a versatile ESP32-S3 smartwatch development Board LoRa Communication, designed for IoT, wearable applications, and smart device projects With built-in Wi-Fi (802.11b/g), Bluetooth BLE 5.0, and LoRa communication, this smartwatc it comes equipped with an RTC clock, microphone, MAX98357A audio decoder, battery voltage detection, BMA423 motion sensor, and GNSS posit Built-in 540mAh Battery Supports 50 hours of continuous communication and GNSS location MCU:ESP32-S3 LoRa:SX1262 WiFi: 802.11 b/g Power Management:AXP2101 Bluetooth: Bluetooth V5.0 DRV2605L Motor: Yes PDM Microphone: Yes Color: As Shown Material: ABS Specification: 915MHz Package Contents: 1*LoRa Node Repeater 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.