Remax RB-T20 Mini Bluetooth Earbuds with Microphone Sport Wireless Music Earphones Bluetooth V4.1 Ear hook headphones Feature: 1. Ear-hook design, not in-ear, free from eardrum damage. The sound is vibrated through the air, leaving their preciously sensitive earhole open and free from discomfort. They don't block outside noise, so when walking you can hear if a car is approaching. Also you can play music while listening to your surroundings. Good for hands free calls. 2. Bluetooth 4.1 Headset: compatible with all the bluetooth enabled devices. Multipoint Technology enable the headset connect with two cell phones in 3 meters range simultaneously. The headphone can be connected back automatically when restarting the already connected smart phones. 3. Bluetooth Headset with microphone support hands-free conversations, voice prompt and phone number reporting. Hands-free function would release your hands from answering the call during driving/working/walking/riding/climbing/cooking etc. 4. The Bluetooth Call Earpiece support to answer/hang up/reject a call, redial the last call, listen to streaming music/video/audio/voice messages etc. With high capacity rechargeable lithium battery, supports more than 4hrs for calls, 5hrs for music playing, 72hrs standby time. It can automatically switch off when you don't use it. Supports battery status showed on IOS device and low battery power reminds. 5. key controls play/pause a song, answer/reject/hang up a call, redial the last calling phone number, next a song. No flashlight when you are listening musics or answering a call. Specification: Name:RB-T20 Bluetooth Headset Bluetooth: V4.1 Sensitivity: 103±3dB Frequency: 50-10KHZ Charging Time: 1.5h Battery Capacity: 60mA Standby Time: 160h Talking Time: 6h Music Time: 5h Package include: 1 × RB-T20 Bluetooth Headset100% Hot and High QualityWe will carefully test every item before shipment.Notes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.2.Please contact us by Jumia Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.