Features

Power Supply Specifications
Power Supply : USB 5V
Charging current:  The charging current is programmable and self-adjustable (default 500mA)
Battery:  3.7V lithium battery
JST Connector:  2Pin 2.0mm
USB : Type-C

Wi-Fi
Standard : FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
Protocol : 802.11 b/g/n(802.11n,speed up to150Mbps)A-MPDU and A-MSDU polymerization,support 0.4μS  Protection interval
Frequency range : 2.4GHz~2.5GHz(2400M~2483.5M)
Transmit Power:  22dBm
Communication distance :  300m
Bluetooth
Protocol : meet bluetooth v4.2BR/EDR and BLE standard
Radio frequency : with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH
Audio frequency :  CVSD&SBC audio frequency

Software specification
Wi-Fi Mode :  Station/SoftAP/SoftAP+Station/P2P
Security mechanism : WPA/WPA2/WPA2-Enterprise/WPS
Encryption Type : AES/RSA/ECC/SHA
Firmware upgrade : UART download/OTA(Through network/host to download and write firmware)
Software Development : Support cloud server development /SDK for user firmware development
Networking protocol : IPv4,IPv6,SSL,TCP/UDP/HTTP/FTP/MQTT
User Configuration : AT + Instruction set, cloud server, android/iOSapp
OS