bt amplifier board module 2 0

{"cid":"91219651","title":"502L 502MT MT21 TB21 AS21 1002T BT Amplifier Board 2.0 2.1 Channel","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/03\/288b0e3c9094db63a330a727f66a-200x200-1.jpg","attrs":{"Brand Name":"Creatall","Model Number":"ZK-502L ZK-502MT ZK-MT21 ZK-TB21 ZK-AS21 ZK-1002T","Place of Origin":"China"}}

{"cid":"91212565","title":"2.4GHz BT IC RN4871-I\/RM128 BT 13mA 10kbps Low Energy Module Surface Mount","imgUrl":"https:\/\/img.chinax.com\/nimg\/37\/55\/39c2b85e91e7274a44bf0c26fb93-200x200-1.jpg","attrs":{"Price":"Contact for Sample","Brand Name":"Original Factory","Model Number":"RN4871-I\/RM128","Minimum Order Quantity":"10","Delivery Time":"5-8 work days","Certification":"Lead free \/ RoHS Compliant","Place of Origin":"CN","Payment Terms":"T\/T, L\/C, Western Union","Packaging Details":"Module","Part Number":"RN4871-I\/RM128","Data Rate":"10kbps","Sensitivity":"-90dBm","Mounting Type":"Surface Mount","Firmware Version":"1.2.8","Current - Receiving":"13mA"}}