M19 Private Model Wireless Bluetooth Headset $ 13.49 Product information: Item: M19 Bluetooth headset Transmission range: 10 meters Function: Power display, call function, voice control, support music Bluetooth protocol: 5.0 Channel: Bilateral stereo How to use: Earplug type Battery: Polymer lithium battery, earphone 50mah, charging compartment 400mah Playing time: Single ear: 5-6H; opposite ear: 4-5H Standby time: 100H for single ear, 60H for opposite ear Full charge time: About 1 hour for earphones, about 2 hours for charging compartment
