Description:Name: Motorcycle Helmet HeadsetProduct Model: BT10;Frequency Range: 2.402GHz-2.480GHz;Answer Mode: automatic/manual;Drive Unit: 30mm 32 ohms 0.5W;Response frequency: 180Hz-2000kHz;Noise Ratio: &gt;80dB;Bluetooth-Compatible&nbsp;Name: BT10;Bluetooth-Compatible&nbsp;Version: Bluetooth-Compatible&nbsp;5.0;Bluetooth-Compatible&nbsp;Distance: &gt;10m;Product Weight: 234g;Power Supply: built-in lithium battery 3.7V 180mAh;Continuous Working Time: ___7 hours;Charging Time: 3-4 hours;Standby Time: ___120 hours;Charging Voltage: USB 5V;Microphone&nbsp;Transmission Distance: ___1 m;Distortion Degree: &lt;1%;Product Functions: listen to music, call, voice guidance, call;Packing list:1 x helmet headset1 x USB cable1 x Manual1 x Packing boxNote:There may be color difference due to different computers or smartphones, please forgive me! <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

BT10 Motorcycle Helmet Headset Answer Incoming Calls Volume Controlling Motorcycle Headphones Easy Installing black