Specifications:
· Bluetooth protocol:5.0 + EDR
· Bluetooth profiles: A2DP, AVRCP, HFP, HSP
· Working range:within 10 meters
· Speaker diameter:40 mm
· Speaker impendance:32Ω
· Headphone sensitivity:110 dB
· Microphone sensitivity:42 dB
· Signal to noise ratio:70 dB
· Frequency response:20 Hz - 18000 Hz
· Battery capacity:250mAh
· Charging time:2 hours
· Working time:6-8 hours
· Input current:DC5V 500mA
· Wired connection type:mini jack 3.5 mm
· Supported media:micro-SD
· Built-in microphone:yes
· Radio mode:yes
· Black colour
Package contents：
· Headphones;
· Charging cable microUSB / USB;
· Audio cable AUX 3.5 mm;
· Instruction;