1、[Bone Conduction] Bone conduction headphones on to produce vibration, through the zygomatic bone to transmit sound to the outer ear canal around the hearing small bone, so that you can enjoy the headphones while maintaining awareness of the surrounding environment and avoid danger, especially suitable for outdoor activities, wild shake not off. 2、[Lightweight And Durable] Bone conduction headphones weigh only 30g/1.1oz, titanium bone frame, lightweight and hard, stretching remains intact. Flexible silicone on the cheekbone can be used for a long time, no pressure or discomfort. Wearing glasses does not affect the wear, streamlined sunken design, wear fit ear shape. 3、[IP68 Waterproof] Dual listening sports Bluetooth headset, open hanging ear design, IP68 level completely waterproof, swimming sports, waterproof special headphones, also equipped with waterproof ear buds, so you experience the fun of swimming, use. 4、[Long Standby] Wireless headphones standby up to 160 hours, music playback can support 5 hours, charging no more than 1.5 hours, bone conduction wireless headphones equipped with USB magnetic charging cable, easy to operate, that is, wear that use. 5、[Two Modes] Swimming headset has a built in 16GB large capacity memory card and MP3 player that lets you enjoy your favorite music directly from the headset without the need for additional devices. 6、[Adapted To The Device] Sports headphones are designed not to go in the ear to defend your ear hearing. Compatible with a wide range of Bluetooth enabled devices, for iOS and for Android Bluetooth smartphones or tablets, as well as PC computers and laptops. Item Type: Bone Conduction Headphone Material: ABS, Silicone Product Model: OPENEAR Wave Bluetooth Version: 5.1 EDR Frequency Range: 20Hz to 20KHz Connection Range: ≥ 10m/32.8ft Built in Battery: Lithium Ion Battery Battery Capacity: 160mAh Playback Time: Approx. 5 Hours (80% Volume) Talk Time: Approx. 4 Hours Standby Time: Approx. 160 Hours Charging Time: Approx. 1.5 Hours Charging Voltage: DC 5V Waterproof Rating: IP 68 Small Memory: 16 GB (Built in) Supported Formats: MP3, WAV Music Mode: MP3 Local Playback and Bluetooth Mode 1 x Bluetooth Headset 1 x USB Charging Cable 2 x Silicone Earbuds 1 x Small Earbud Storage Box 1 x Storage Bag 1 x Chinese and English Manual