The single earbud adopt advanced Wireless4.1 with multi-point technology, simultaneously connect with 2 mobile devices, high-sensitive inbuilt mic with noise canceling technology, delivers crystal clear stereo sound. High effective magnetic charging technology enables our single earbud to charge fast and transform energy effectively. Inbuilt 50mAh rechargeable battery of earbud lasts up to 6 Hrs music time with 2 Hrs fully charged via included 90° foldable USB Charger. Its auricle design and 3-type eartips snugly fit your ear, secure and stable. Multi-functions can be achieved via pressing its button. Compact size and storage case is portable and enable it to be widely used in car owners, white collars, businessmen during travel etc.. *Crystal Clear Sound Effect: Adopts advanced Wireless 4.1 EDR technology to ensure transmitting strong signal in high quality and offering crystal clear sound. Besides, echo cancellation technology ensures high definition sound reproduction. *Ultra-Long Unstoppable Music Playtime: Embedded 50mAH lithium-ion battery can last up to 6-hour music playtime and 5-hour talk time when 2Hrs fully be charged. Multi-functions: answer/end a phone, play/pause, pairing, power on/off, etc. can be operated via pressing its multifunction button. *Multipoint Connection: The single earbud is able to connect two separate Wireless-enabled devices simultaneously and it will intelligently switch between the two devices. So you can seamlessly switch between your business and personal phones. (Advantages: This is a SINGLE earpiece so you can easily hear the surroundings sound with the other ear.) *Magnetic Inductive Charging: Directly put earbud on 90° foldable USB charger, it will magnetically stick to the charger and then plug the overall item into car charger, computer, DC adapter and more to charge this earbud no need to fiddle with tanging cords. *Ergonomic and Lightweight Design: Ergonomically-designed tiny sizes fit either ear comfortably and tightly with 3 different sized ear tips to choose. It is weighs only 0.16oz (4g) that you could barely feel it when you wear it. Easy to carry when walking, exercising, driving ,travelling, etc.. Brand: Fresh Fab Finds Wireless version: 4.1 EDR Profile: A2DP, AVRCP, HFP, HSP, DI Frequency response: 2.402GHz-2.483GHz Sensitivity: -42db Mic Driver unit: φ6mm Transmission range: ≤10m/32.8ft Playing time: Up to 6hours Talking time: Up to 5 hours Standby time: 50 hours Charging time: 2 hours Battery: 5V/50mAh li-polymer rechargeable battery USB input: DC 5V Standby current: ≤1mA Working current: ≤9mA Materiel: ABS Earbud Diameter: 16mm/0.6inches Earbud weight: 4g/0.16oz Package size: 8.2*8.2*2.9cm/3.23*3.23*1.14inch (L*W*H) Package weight: 66g/0.15lbs 1 x Earbud 2 x USB Chargers 1 x Carrying Case 1 x Large Ear cap 1 x Medium Ear Tips 1 x User Manual