Motorcycle Helmet Intercom 4.1 bluetooth Motorbike Headset Interphone FM Speaker

Features: 1. The main unit contains a larger capacity battery up to 450mAh, which makes the standby time and working time of the whole machine longer. 2. The internal earphone is thin, does not squeeze the ear, and is comfortable. Use high-power audio amplifier to make the audio volume range larger, and it will not affect music playback and telephone answering in the noise environment of high-speed riding. 3. Fix the main unit with screws and bayonet, which makes the main unit installation tighter and high-speed riding is not easy to fall off. Use high quality amp chip to restore bluetooth audio with high sound quality. 4. Use high-power audio amplifier to make the audio volume range larger, and it will not affect music playback and telephone answering in the noise environment of high-speed riding. Specifications: Color: Black;Black-blue bluetooth Version: 4.1+EDR CSR8635 bluetooth Profile: A2DP + ACRCP Battery Capacity: 450mAh Charging Voltage: DV 5V/190mA Plug type: USB interface Frequency: 2.4GHz Amplifier: HT4832SQ Working Duration: about 10 Hours Maximum Distance: 50M Size: 8.5*5*2CM/3.35"x1.97"x0.79" [Conversion: 1cm=0.3937 inch, 1inch=2.54 cm] Note: 1. Due to different producing batches, product details might be a little different. If you mind the difference, please buy it carefully. 2. Please allow 0-1CM differs due to manual measurement. 3. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Package Included: 1 X Headset Host 1 X MIC and Trumpets 2 X Magic Sticker Inside Helmet 1 X Fixed Folder 1 X Screw Driver 2 X Screws 1 X Charging Cable 1 X User Manual