I am an Chinese seller,providing customers with high-quality and low-cost products. The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on. We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans. Sincerely at your service .Please feel free to contact us if you have any questions.Specifications:Made of sponge and soft faux leather, comfortable to wear.Built-in large capacity battery provides long time music enjoyment.This headphone is easy to fold up so that you can effortlessly carry around.Compatible with all Bluetooth devices.Item Name: Bluetooth HeadphoneBluetooth Version: V4.0Bluetooth Mode: for A2DP 1.2/AVRCP 1.0/ HSP/ HSF 1.5Frequency: 2.402-2.480GHZReceiving Sensitivity: - 84dBmMaximum Transmit Power: 4dBmFrequency Response: 20Hz - 20KHzSignal to Noise Ratio (SNR): 70DbTotal Harmonic Distortion (THD): 0.1 PercentIndicator Lamp: Blue LightHeadphone Charging: Rechargeable 400mAh Lithium Battery (Included)Charging Port: Mini 5 Pin USB Charging InterfaceNormal Charging Time: about 2.5hTalk Time: Up to 10hStandby: Up to 250hOperating Temperature: - 20 Centigrade to 55 CentigradeFeatures: Foldable, Rechargeable, Comfortable Wearing, with Indicator LightSize: 17.5cm x 9cm x 13cm/6.89" x 3.54" x 5.12" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Included:1 x Bluetooth Headphone1 x USB Charging Cable1 x User Manual a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a