Wireless Headset Single-Ear Wireless Bluetooth Earphone Headphone Type: In-Ear Connectivity: Wireless Wireless Communication Technology: Bluetooth ・Professional Chipset: With AAC decoding technology, you can enjoy sound with double the clarity compared to general Bluetooth earphones. Enjoy comfortably in various everyday scenes such as training, driving, walking, desk work, work, commuting to school, watching DVDs, and conference calls. ・4g Ultra-Lightweight & Doesn't Fall Out: It fits perfectly in your ear, so you can do light exercises like walking, cycling, and jogging without any problems. ・Well-Balanced & Deep Sound: With a 10mm dynamic driver and a unique diaphragm, you can reproduce a deep sound. The sound quality is clear and high-quality in every range, with a good balance and easy listening. ・Sound Quality Comparable to High-End Brands: The sound is well-balanced from low to high frequencies, and the resolution is high, making the earphones feel crisp and pleasant. Reproduces clear high frequencies and rich mid-low frequencies with stereo sound, allowing you to feel more realism. The contents are new, but the outer box has some stains. Please understand. I have various other items for sale as well. Please take a look from #yu's listing list ❤️ 4-35 #SingleEarWirelessEarphones #SingleEarBluetoothEarphones #WirelessEarphones #BluetoothEarphones Connection Type...Wireless Features...Bluetooth