Voice call compatible Charging cable included Operation confirmed on iPhone/Android Specifications Bluetooth compatible version: csr4.1 Support agreement: a2dp, avrcp, hsp, hfp Lithium battery capacity: 55mah Charging time: 2 hours Color: Black Working time: Music playback, up to 3 hours; Call status, up to 5 hours Standby time: Up to 180 hours Operating range: 10 meters Frequency response: 20-20KHz Charging interface: Micro USB Total length: Approximately 60cm / 23.6 inches Pairing method 1. Press and hold the switch button for 3 seconds or more, and the blue/red LED will flash, entering pairing status. 2. Enable Bluetooth on your mobile phone and scan and search for "music". 3. Click "[Pair]" and select "[OK]". Contents 1 x Bluetooth-compatible earphones 1 x USB charging cable *Color is random. Although new, there may be minor scratches and dirt due to being an overseas product. Please refrain from purchasing if you are particular about domestic product quality or are sensitive to imperfections. The design and specifications may differ slightly between the image and the actual product, so please prioritize the actual product images. The information provided is based on information from the manufacturer. Therefore, we cannot guarantee performance. For initial defects, we will resend or cancel the order after the product is returned with the buyer paying for the shipping. As this is an imported product, there may be minor scratches and dirt. #Yumemibito (Yu) ← We have several other items for sale.