True wireless Bluetooth in ear stereo waterproof sports long endurance intelligent noise reduction headset About this item Immersive Sound Through Targeted Active Noise Cancellation - Built-in dual microphone provides enhanced noise cancellation allowing down to -38dB. works even without songs being played IP54 and water proof. True Waterproof Headphones are suitable for a variety of indoor and outdoor activities. After a rainy day or a sweaty workout, please dry before charging AAC audio decoding: support high quality audio App control control: custom control and adjust sensitivity, adjust ambient sound and even more 24-hour total battery + fast charge: battery power consumption varies with use Product features: Bluetooth version: Bluetooth V5.0 Bluetooth protocol: A2DP, AVRCP, HFP, HSP Effective distance: 10M Working hours: About 6h (headset) + 18h (charging box) Rated input: dc5v50ma (earphone） dc5v350ma (charging box) Frequency response range: 20Hz-20KHz Sensitivity: 95dB Includes: 1x headphones Bluetooth Headset The More You Buy, the Better the Deal Christmaschristmas Decorations Before Christmaschristmas Decorations Clearancethe Before Christmasholidaynightmare Before Christmas Popchristmas Clearance To Better Fit You,please Do Measure the Size and Compare to the Size Chart Before Placing Order. AFTER SALE SERVICE: 30 Days after sales service and exchange, reply you within 24 hours to solve your problem.