Product code: 1030272 Dudao U21 TWS wireless headphones are a combination of modern technology, comfort and clear sound. Equipped with a dual ANC + ENC noise cancellation system, they effectively eliminate ambient noise, so you can enjoy your music in full focus. Long operating time and energy-saving technology make them perfect for everyday use. The lightweight design ensures comfort even when worn for extended periods of time. It's a reliable accessory that will enhance the quality of your calls and music listening in all conditions. Key features: - Dual ANC + ENC noise cancellation: effectively blocks up to 99% of ambient noise for clear sound. - Long Battery Life: The 300mAh battery of the case and 30mAh headphones allows you to enjoy music and calls for hours. - Stable Bluetooth 5.4 connection: guarantees fast pairing and reliable transmission. - High sound quality: Ø13mm drivers deliver rich sound and crisp tones. - Compact and lightweight design: convenient to use, easy to carry and charge in the case. Technical specifications: - Brand: Dudao - Model: Dudao U21 - Bluetooth version: V5.4 - Bluetooth range: ≤10 m - Bluetooth chip: Jieli 7003D8 - Frequency response: 20 Hz - 20 KHz - Driver: Ø13 mm, 32 Ω - Headphone battery capacity: 30 mAh - Case battery capacity: 300 mAh - Standby time: approx. 20 h - Music playback time: up to 4 h (at 80% volume) - Talk time: up to 2 h (at 80% volume) - Input: USB-C DC 5 V = 1 A - Charging time of the case: approx. 2 h - Charging time of the headphones: approx. 1.5 h - Color: black The set includes: - Wireless headphones