•Bluetooth Solution: 5.3Version, JL6973D

•Supported: A2DP, AVCTP, AVDTP, AVRCP, HFP

•Frequency Response: 20Hz ~ 20KHz

•Sensitivity: -90dBm

•MIC Type: 40±3 dB

•Earphone Battery: 40mAh/3.7V *2

•Case Battery: 320mAh/3.7V

•Battery Life: 20 Hours with the Case