FOUR 2-IN-1 Bluetooth Lähetin / Vastaanotin

Specifications:

Bluetooth Version: 5.1
Bluetooth Distance: about 8m,(26.25feet)
TX Working time: 10 hours
RX Working time: 10 hours
Standby time: about 3 month
Charging time: 1.5 hours
Power input: DC 5V/500mA
Product Size: 66.1*38.2*13.6mm
Audio Jack: 3.5mm Aux-in /Aux-out
weight: 25g
Material: Black ABS shell.