Features: The newest multifunctional headset is the upgraded version of NX8252 Bluetooth headset. 4 in 1 Multifunctional stereo Bluetooth Headphone: Wireless Stereo Bluetooth Card MP3 player FM Radio Wired Headset function.3.5mm audio jack, provides a simple wired connection of a variety of music players (Such as, MP3 / MP4, etc) without Bluetooth function.Easy to pair with almost any Bluetooth-enabled audio / music players devices, such as, Smart Phones, Tablet PC, Laptop, NoteBook, etc.  DSP noise cancellation, bring you clear sound effect.   Be designed with two High-grade speaker and has built-in Mic,, powerful bass system, bring you superior sound effect. Best choice for listening to music / FM Radio, watching movie, chatting online, etc.  Supports hands-free function, conveniently answer the incoming call during travel.   Low power consumption, bring you 8 hours of talking time, 8 hours of music playing time and 120 hours of standby time.  High-quality, foldable design and adjustable headband length, very comfortable to wear and easy to carry. With built-in high-quality rechargeable Li-ion Battery, and easily charged by the included USB cable via computer, etc.Specifications: Brand Name: Andoer Model Number: LH-811 Type: Stereo headphone with Mic Bluetooth version: ISSC3.0 EDR Support Profiles: HSP, HFP, A2DP, AVRCP. Profile and Advanced Audio Distribution Profile(A2DP) Operation Distance: 10m; Transmitting Power: Class 2 Frequency Range: 2.4026 GHz-2.480 GHz Resistance: 32ohm Sensitivity: 105dB / - 3dB Rechargeable lithium battery: 300mAh Talking Time: 8 hours Music Playing Time: 10 hours Standby Time: 120 hours   Charge Time: 2-3 hours Plug Type: 3.5mm  Audio cable length: 1.2m / 3.94ft Earmuff Diameter: 7.5cm / 3.1in Color:Gold, Blue, Black, Red (Optional) Main item size (Foldable): 18.5 * 16.0 * 7.5cm / 7.28 * 6.29 * 2.95in Item weight: 163g / 5.76oz Package size: 16.5 * 15.0 * 9.0 cm / 6.5 * 5.9 * 3.5in Package weight: 265g / 9.35oz