Main centres: | 1-3 business days |
Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
Chip | ESP8266EX |
USB TO TTL chip | CH340K |
Charging chip | TP4054 |
Is there a battery switch | With battery-powered switch |
Type of battery | 16340 3.7V rechargeable battery (without battery) |
USB interface | Micro USB |
WIFI antenna | Ceramic antenna |
Is there an external antenna mount | With IPX antenna mount |
FLASH | 4MB |
Product Size | 43.96X25.63MM |
Product weight | 7.87g |