Overview:

This KOTION EACH B3505 wireless Bluetooth Stereo headphone with remarkable sound, it is a good choice for listening music, watching movie, chatting online, etc. 

Features:

Wireless Bluetooth headset, compatible with Bluetooth enabled devices, such as for iPhone, iPad, HTC, Lenovo, Samsung, Tablet PC, etc. How to Use: NFC cellphones touch the right earcup of the headphone within 10mm, and the Bluetooth headphone can be directly connected.Enhanced noise reduction, good choice for listening music, watching movie, answering phone calls, etc.High precision 50mm magnetic neodymium driver, bring you vivid sound field, sound clarity, sound shock feeling.Multifunctional keys allow you to power on/off, answer/hang up/reject/redial call, pause and play, vol+/-, next/previous track.Supplied with a 3.5mm cable that you can use to connect the headphone to devices without Bluetooth.Up to 10 hours playing time and standby time 250 hours.Powered by the lithium battery (can be charged via USB).Earmuffs used with skin-friendly leather material, and super soft Over-ear pads that is more comfortable for long time wear.Good quality and fashionable appearance; adjustable length hinges and very comfortable to wear.

Specifications:

Bluetooth version: V4.1+EDROperation distance: 10mSpeaker diameter: 50mmMicrophone unit: 4 * 1.5mmImpedance: 32ohmS.P.L: 106dB S.P.L. at 1KHzFrequency response: 20HZ-20,000HZBattery: Built-in rechargeable 3.7V/250mAh lithium-ion batteryMusic time: Approx. 10 hoursTalk time: Approx. 11 hoursStandby time: 250 hoursInput DC: 5V/130mACharging time: Approx. 3 hoursPlug type: 3.5mm stereoColor: Black&orange, White&BlueAudio cable length: Approx. 120cm / 3.94ftHeadphone size: Approx. 19 * 7.5 * 19.5cm / 7.5 * 3.0 * 7.7ozHeadphone weight: 221g / 7.8ozPackage size: 19.5 * 8 * 21.5cm / 7.7 * 3.1 * 8.5inPackage weight: 395g / 13.9oz

Package content:

1 * Bluetooth headset1 * USB charging cable1 * Audio cable1 * English user manual