Reference Title: DIY Headphone Audio Cable Line Control Earphone Maintenance Wire With Microphone Bluetooth-compatible Adapter Receiver Description: Features: brand new and high quality. Product Name: DIY Headphone Audio Cable Earphone Maintenance Wire with Microphone & Bluetooth-compatible Adapter Receiver Bluetooth-compatible Version: Bluetooth-compatible 4.0 Standby time: About 100 hours Charging time: 1-2 hours Music time: About 4 hours Talk time: About 4-6 hours Transmission Distance: Within 10 meters Frequency range: 20Hz-20KHz Whether with microphone: Yes Application: Earphone Use: Headphone DIY (need welding) Applicable products: for Bluetooth-enabled mobile phone, for , for laptop, for desktop computer, etc. Specifications: for Jacket material: TPE Main Color: White / Black (Optional) Size: (Approx.) Wire Total Length: 74cm/29.13in(2cm) Wire Diameter: 1.6mm Quantity: 1 Set Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (No retail package) 1 X DIY Earphone Audio Cable With Bluetooth-compatible Adapter (earphones NOT include) 1 X Micro USB Charging Cable