Our wireless earbuds adopt advanced Wireless V5.3 with high-sensitive inbuilt microphone, deliver crystal clear stereo sound. Dual earbuds can be worked as single track mode or stereo mode for multiple functions. Inbuilt 45mAh rechargeable battery of each earbud lasts up to 5 Hrs music/talk time with about 40mins fully charged. 200mAh Portable charging dock supply 3 times full charge of dual earbuds. Its auricle design and 3-type earcaps (S-M-L) snugly fit your ear, secure and stable. It is an optimal helper for car owners, white collars, businessmen during travel or daily life. V5.3 Wireless & Crystal Clear Sound: Latest Wireless V5.3 version with high quality and high speed signal transmitting, offering impressive crystal clear stereo sound. Adopts high-sensitive microphone to reduce ambient noise, grasp the details of voice and offer crystal clear sound even in a noisy environment. True Wireless & Snugly Ear-fit: True wireless dual ear stereo design, left and right earbud can be separated, that is, you can use its left and right ear headset solely (Single Track Mode), also can used them in pairs (Stereo Mode). Ultra mini size and S-M-L size optional ear tips guarantee stable and comfortable for long time wearing. Up To 15Hrs Stereo Audio & 30Hrs Single Experience: Get 40mins from dual earbuds full charge, then prolong that to 15Hrs with the included charging case (for 6 times single charge). Take the one earbud for single mode and leave the other earbud charging, extend music playing time from 15Hrs to about 30Hrs. Magnetic Charging: Simply put your earbuds near the charging interface and they will be held in place magnetically and recharge. Digital indicator lights can show the remaining battery power of the charging dock and left/right 4LED lights shows the power of your earbuds. You can also see the earbud remaining battery power in your phone. Auto TWS Pair & One-Key Operation: Auto switch on and TWS connection of 2 earbuds when picking from the charging case and auto off once 2 earbuds put back into charging dock. With its one-key touch design, simply and quickly fulfill almost all functions like answer/end a phone call, play/pause music, pairing, power on/off, voice assistant, and etc.. Brand: iMounTEK Product Type: Wireless Earbuds Color: Black Material: ABS Wireless Version: V5.3 Wireless Connection Name: K10 Wireless Connecting Distance: 10m/32.8ft Charging Voltage: DC 5V/1A Speaker: φ8mm/0.026in Earbud Battery: 45mAh Lithium Battery Charging Case Battery: 200mAh Lithium Battery Standby Time: About 6 Months Earbuds Charging Time: About 40Mins Charging Case For Earbuds: 6 Times For Single Earbud; 3 Times For One Pair Of Earbuds Music/Call Time: 5Hrs Charging Case Charging Time: About 1Hr Waterproof Rate: Life Waterproof USB Cable Length: 21.5cm/8.46in Per Earbud Size & Weight: 1.5x2x2cm/0.59x0.79x0.79in; 3.8g/0.008lbs Item Size: 6.5x4.5x3cm/2.56x1.77x1.18in Item Weight: 37.5g/0.08lbs Package Size: 12x8x3cm/4.72x3.15x1.18in Package Weight: 66g/0.15lbs