Designed for Sports, Adjustable to Fit any Ear Size Designed for sports with comfortable ear hooks, unlike ordinary in-ear earbuds, with ergonomic design and flexible silicone ear hooks, the Q28S wireless headphones are firmly fixed on your ears, comfortable to wear and never fall off.S/M/L three soft silicone earbuds are available for you to choose from, so it is convenient for you to find the right size. It also provides deep bass and clear treble, restoring true sound. (Note: Hadbleng headphones work perfectly with any Bluetooth device.) Up to 50 Hours of Music Playback with Digital Display Charging Case 1. Bluetooth headphones last up to 8 hours on a single charge, and the charging case recharges the earbuds up to 7 times. When used with the Type-C quick charging case, the overall battery life is up to 50 hours. 2. The LED display clearly shows the power level of the charging case and earbuds. The numbers represent the percentage of power of the charging case, and the four independent power consumption indicators represent the charging process of the earbuds. 3. During charging, the LED indicator flashes. Please charge the charging case at least once a week. If the charging case is over-discharged, the percentage display will still show "0" when we plug in the charging cable. Please wait for 15~30 minutes, the LED display will change later. (Note: Hadbleng headphones work perfectly with any Bluetooth device.) High Performance Bluetooth 5.3 Technology Sports Earbuds, Compatible with a Wide Range of Bluetooth Smart Devices 1.Q28S wireless earbuds are powered by the latest Bluetooth 5.3 chip, which gives our wireless earbuds an edge in sound quality, low latency and low power consumption. 2.The wireless earbuds are compatible with most Bluetooth devices, including Android smartphones, iPhone series (e.g. iPhone 14/14 plus/14 pro/14 pro max/13 series/12 series/11 series/X/XR/8 plus/8, etc.), iPad/Mac Book, etc.), and computers/smart TVs. Laptops/Smart TVs, etc. 3. Easy pairing: Take out the two earbuds from the charging case, they will automatically connect to each other, then select Q28S in the Bluetooth menu, the Bluetooth wireless earbuds will be paired with the device successfully. When you remove the earbuds, they will automatically switch on and pair with the device after the first connection. With Bluetooth technology, the wireless Bluetooth earbuds have a wider range of use and fewer dropouts, allowing you to stay connected while on the move. 4.Package Details: Headphones*2, 800mA charging compartment, Type-C charging cable, manual, ear caps*6 (S/M/L) (Note: Hadbleng headphones work perfectly with any Bluetooth device.) HD Clear Calls Equipped with 4 microphones and Ambient Noise Cancellation (ENC) technology that filters out ambient noise for high-quality calls, the machine-learning based solution filters out ambient noise for clearer calls. This allows you to be heard clearly during calls, video conferencing, live streaming and more. Ergonomic Design, over-ear Flexible Hook, Designed for Sports, Stable and Does Not Fall Off 1.Compared with normal earbuds, these running bluetooth wireless headphones are more comfortable to wear! The weight is fixed at the top of the ear instead of in the ear canal, no pain and fatigue for long time exercise, don't have to worry about the headphones falling off. 2. Equipped with 3 pairs (S/M/L) of soft rubber ear caps in different sizes to ensure that people can find the best fit and get the best sound. 3. IPX7 rated waterproof ensures listening whether you're in the rain or sweating it out at the gym, ideal for outdoor sports and long workouts. Enjoy a sweaty workout and immerse yourself in the music. (Note: Hadbleng headphones work perfectly with any Bluetooth device.) Push Button Control for Easy Operation Push-button operation allows you to answer or hang up a call, previous or next song, pause or play, and wake up the voice assistant. FAQs 1.Unable to Charge the Earbuds? (1) Please clean the charging contacts of the earbuds and charging case (2) Make sure the headphones are placed correctly in the charging case. 2.Can it be Use in the Shower? No, You can use it while exercising, but do not use it while swimming or bathing. 3.Low Volume? Once click the right earbuds touch control response area to increase the volume. 4.Poor Noise Cancelling? The earbuds don't have Active Noise Cancellation (ANC), please select the appropriate eartips 5.Poor Sound Quality? Replace the appropriate eartips to ensure airtightness. 6.Only one Earbuds Can be Use? (1) Put 2 earbuds in the charging case for charge. (2) Delete the previous bluetooth pairing information on the phone. (3) Take out 2 earbuds and pair it with phone again.