Bluetooth Wireless Earbuds With Charging Case Stereo Headphones Low Power Noise Reduction,Built In Mic Headset Sound With For Sport/Work Feature: Intelligent noise reduction: microphone can make clear calls. The unique algorithm technology combined with microphone can effectively suppress environmental noise interference, and provide you with a clear call experience in various scenes Key touc-h command: Sim-ple intelligent touc-h function. The latest 5.3 chip provides stable signal, faster automatic pairing and Simpl-e intelligent touc-h function. Play / pause, ANSWE-R / end, volume increase / decrease, up / down song switching can be easily operated by tou-ch keys Bluetooth 5.3Technology- The Bluetooth headset uses the latest Bluetooth 5.3 chip. Stable data transmission and wide wireless coverage. all Bluetooth enabled devices. Great for Gifts Bluetooth headphones with 400mAh battery capacity charging case, mA charging box is portable to go out. It is creative to store the charging box, which is convenient and practical. There is no need to worry about losing the headset because it has no-where to store it LED Display: The upgraded earbuds charging compartment features a mainstream connector for a wider range of adaptations. Fast charging of just 1.5H.The LED digital display provides a visual indication of the charge of the charging case Product parameters: Bluetooth version: V5.3+EDR Wireless frequency: 2.4GHZ Support protocol: HFP/HSP/AVRCP/A2DP/AVTCP Transmission distance: indoor 15m, outdoor 10m Battery capacity: headset 80mAh+charging chamber 400mAh Charging voltage/current: 5V/1A Play/talk time: about 9-12 hours Charging time: about 2 hours Standby time: 90 days Horn impedance: φ 10mm 32Ω Mic sensitivity: - 42db Working temperature: - 10-50 ℃ Package size: 14x8.5x3.5cm/ 5.51x3.35x1.38 inch Gross weight: 131g/ 0.29 lb The Package Include: 1 x Bluetooth headest 1 x Charge cable 1 x Use manual