Specifications:
Model:RB-T13
Material:ABS
Communication: Wireless
Wireless Type: bluetooth
bluetooth version:5.0
Transmission distance:10m
Operating Voltage:3.7V
Horn impedance:16Ω
Speaker power:3mW
Battery Capacity:40MAH
Vocalism Principle: Other
Control Button: Yes
Volume Control: Yes
Function: For Mobile Phone
Sensitivity: 110±5dB
Frequency Response Range: 20-20000Hz
Waterproof: Yes
Support Memory Card: No
With Microphone: Yes
Charging Time:1H
Music Time:4H
Talk Time:4H
Standby Time:50H
Weight:3.5g
Dimension:23*13.7*12.1mm

Package Contents:
1 x RB-T13 bluetooth Earphone
1 x USB Charging Cable
1 x Ear caps
1 x User Manual
 
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.