Feature: 1. Wide Application: The helmet bluetooth headset built in 180mAh rechargeable lithium ion battery supports 8 hours of continuous talking and playing time and 160 hours of standby time. Convenient for motorcycle driving, take out, express delivery, outdoor sports, skiing, skating, etc. 2. Convenient to Use: The bluetooth motorcycle helmet can be connected to two phones at the same time, and the phone's screen can display battery power. Removable hook and loop faster design can easily install the headset into the helmet. 3. Automatic System: Bluetooth 5.0 headset has microphone function and supports automatic answering of calls. The built in chip will automatically answer the phone first and then continue to play music. 4. Superior Performance: The helmet headphone's two ear pads are ultra thin and never squeeze your ears in the helmet. Bluetooth 5.0 chip, HiFi headset. Basically applies to all types of motorcycle helmets. 5. Compatible: 10m/32.8in 20m/65.6in meters (depending on the device), built‑in Bluetooth 5.0, almost compatible with all mobile devices that support Bluetooth. Maximum effective distance 20 meters/65.6in, automatic connection within the range of the paired phone. Specification: Item Type: Bluetooth Headset Material: ABS Model: T6 Bluetooth Version: 5.0 Frequency: 2.402 GHz to 2.480 GHz Bluetooth Distance: 10m-20m/32.8ft-62.6ft (Depending On The Environment Around Obstacles and Other Devices) Microphone Transmission Distance: ≤1M/3.3ft Built In Battery: 180mA Lithium Battery (Delivered With Battery) Use Time: 8 Hours Charging Voltage: 5V Charging Time: ≤2 Hours Standby Time: ≤160 Hour. Package List: 1 x Bluetooth Headset 2 x Hook and Loop Fasteners1 x Charging Line1 x Description