Weight Approx. 480-490g


L: 57-61cm   M: 54-58cm 

America / Australia:
L 58-61cm,M 55-59cm

Bluetooth Version:5.2
Bluetooth Range:Max 15m

Bikes,Scooters, Skateboard, Roller Skating, Hoverboard, E-bike, etc.

Hands-Free Operations

All LIVALL functions are designed to be used hands-free to ensure user safety remains the number one priority.

Fall Detection

As the first brand to actualize patented Fall Detection & SOS Alert function in outdoor sports, LIVALL BH51M NSO has special sensors that can detect your fall when an accident happens. An SMS alert will be sent to your preset emergency contacts with GPS location after 90 seconds.

Press For SOS

If in distress, press the red button on the remote for 5 seconds and your emergency contacts will receive an alert message with your GPS location.

One-Click Voice Command

PTT Walkie-Talkie

Answer phone calls using the remote control and enjoy clear sound both ways with the helmets in-built Bluetooth speakers and wind-proof microphone.

Easily communicate with your fellow cyclists using the Walkie-Talkie function when riding in a group.

Voice Navigation 

Listen to GPS voice navigation via the built-in speaker with your connected smartphone.

360° Warning Lights 

The BH51M NSO has 53 built-in LED lights, which will warn vehicles  in every direction for safer riding. The front LED light can make oncoming motorists to see your presence and let everyone know you’re coming.

Brake Warning Lights

When the built-in gravity acceleration sensor detects a significant deceleration, the front and rear lights will be highlighted for 8 seconds to draw the attention of nearby vehicles and pedestrians.

 Turn Signal Indicators 

Press the turn signal button on the bar-mounted remote controller to safely indicate turns. No need to take hands off the bar to manually indicate turns. 

Automatic Sensor Lighting

Smart lighting integrates adaptive technology to ensure your visibility in dark conditions while turning off to save energy in the daytime.

Anti-Loss Alarm 

When the helmet is connected with phone but the distance between the helmet and phone exceeds 20 meters, both the helmet and phone will make a alarm sound to alert the user. 

Auto On/Off

The helmet will be turned off automatically when the helmet is disconnected with phone and keep quiescence for 15 minutes.The helmet will automatically turn on when it moves. When the helmet is connected with phone and the distance between helmet and phone.