E104-BT55SP Small size, Low power ble module [Chip solution]:CC2340R5 [Carrier frequency]:2.4GHz [Transmission power]:8dBm [Communication distance]:170m [Product size]:10*14.5mm [Product weight]:0.5±0.1g [Introduction]:E104-BT55SP is a small-sized, low-power ble module based on ble protocol...