NIA S3000 OVER EAR MUSIC HEADSET WIRELESS BLUETOOTH HEADPHONES. Overview: With BT 4.2 Technology, 3.5mm Audio Port, Built-In Microphone And Speaker, TF Card MP3 Player, Hands-Free Call, And FM Radio, The BT Headphone Is A Super Companion For You During Daily Life And Travel. BT Connection: With BT4.2 Function, Easy To Pair With Almost All The BT-Enabled Audio Devices, Freely To Enjoy Wireless Music And Hands-Free Calls. AUX-IN Function: Connect To The Audio Devices (Such As MP3/MP4, Laptop, Etc) Without BT Function Via The 3.5mm Cable (NOT Included). Long Battery Life: Built-In 200mAh Rechargeable Battery Lasts 6-8 Hours Of Music Playing Time Per Charge Cycle. Ergonomic Design: Adjustable Headband Length, Foldable Soft Leather Ear Cushion, Comfortable To Wear, And Easy For Storage. High-Sensitive Mic: HD Microphone Reduces Ambient Noises And Grasps The Detail Of Voice. You Can Get High-Quality Hands-Free Phone Conversation. Specifications: Brand Name: NIA, Model Number: S3000, BT Version: 4.2, Support Profiles: A2DP/ACRCP, Operation: 10 Meters (No Obstacle), Frequency Response: 20Hz-20KHz, Impedance: 32Ω, Sensitivity: 108±3dB, FM Frequency: 87.5-108MHz, Music Format: MP3, WMA, WAV, Speaker Unit: 40mm, Battery Type: 200mAh (Depends On Music Volume), Working Time: 6-8 Hours, Standby Time: About 200 Hours, Charging Time: About 2 Hours, Charging Port: Micro USB, Color: Black, Item Size: Approx. 20.516.58.3cm/8.076.493.26in. Packing List: 1 * NIA S3000 Headset, 1 * Charging Cable, 1 * User Manual (English).