ESP32 & LoRa Combo:Heltec V4 features ESP32 & SX1262 with 28dBm LoRa power. Supports WiFi/BLE5 and 16MB flash. Ideal for Meshtastic and long-range IoT applications. Enhanced performance for professional developers Solar Powered & GNSS Ready:Features solar charging interface and GNSS port. Ultra-low 20μA power consumption. Optimized battery management. Ideal for outdoor Heltec V4 deployments with GPStracking capability Solar-powered : With 5W solar panel built in battery slot.Can accommodate up to 4 18650 batteries No chargers, outlets, or hassle, this solar-powered Meshtastic node ensures reliable off-grid communication whenever you need it 360°Adjustable Bracket:360° adjustable mounting bracket the angel of maximal sunlight exposure, You can mount the solar panel anywhere, Then get plenty of sunshine and Keep your Solar Panel with direct sunligh Solar Panel Power:5W Antenna:868/915 MHz Material:Tempered Glass Conversion Rate:24.3% sizes:177x375x35mm (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Specification: 868MHz Package Contents: 1*Heltec LoRa 32 V4 Meshtastic Solar Repeater kits (screw and accessory colors are random) 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.