Speaker: HS 81 ?
MP3 Decoder: VLSI VS10038
Sub-1GHz MCU: TI CC1310
Wi-Fi: SB-WB-N08 ?
Temperature and RH sensor: SHT30
New PM2.5 Sensor: Honeywell HPMA115S0-XXX
CO2 Sensor: Amphenol Telaire T6703-5K
SoC: STM32F412 VGT6
Microphone: BSE F2
Antenas: Airgain N2420DG ,Airgain N915CS