<p>Built-in power amplifier chip, surround high-fidelity stereo sound</p> <p>Bluetooth 5.3 version, ultra-low power consumption, Bluetooth one-to-two function, can connect two mobile phones at the same time and use it at the same time</p> <p>You can choose from two modes for incoming calls: automatic | manual answering of calls, freeing your hands and wireless freedom</p> <p>Intelligent power saving, can work while charging, large-capacity battery, can listen to music continuously for more than 12 hours, long standby time of 160 hours</p> <p>You can listen to music while charging, solving your worries, intelligent noise reduction, and clear calls</p> <p>Name: Motorcycle Helmet Bluetooth Earphone</p> <p>Bluetooth version: 5.3</p> <p>Frequency: 2.402GHz-2.480GHz</p> <p>Range: 10 meters</p> <p>Microphone transmission distance 1 meter</p> <p>Lithium-ion battery: 3.7V\/250mAh</p> <p>Play time: 12 hours</p> <p>Charging voltage: 5V</p> <p>Charging time: 1.5 hours</p> <p>Standby time: 160 hours</p> <p>Colour:Black</p> <p>Material:ABS</p> <p>Package Contents:</p> <p>1 x Earphone(Built-in 250 mAh battery)</p> <p>1 x Charging Cable</p> <p>1 x Microphone Sponge Cover</p> <p>4 x Nylon Sticker</p> <p>1 x Instructions in Chinese and English</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>