[{"title":"(4个子文件31.14MB)蓝牙2.0、2.1、3.0、4.0规范打包下载","children":[{"title":"蓝牙规范","children":[{"title":"Core_V3.0+HS.pdf <span style='color:#111;'>15.97MB</span>","children":null,"spread":false},{"title":"CoreV2.1+EDR.pdf <span style='color:#111;'>13.14MB</span>","children":null,"spread":false},{"title":"Core_V4.0.pdf <span style='color:#111;'>13.08MB</span>","children":null,"spread":false},{"title":"Corev2.0+EDR.pdf <span style='color:#111;'>12.53MB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]