Specification: Name: Bone conduction Bluetooth-compatible headset Color: black, blue, red, green (optional) Bluetooth-compatible version: V5.2 Speaker: bone conduction vibrator speaker Battery: 170mAh Battery life: about 12 hours Charging time: 2 hours Bluetooth-compatible distance: about 10 meters Frequency: 20Hz-20KHz Impedance: 32 ohms Sensitivity: 85dB/mW Waterproof rating: IPX 5 Supported functions: music playback, pause. Answering calls, rejecting calls, etc. Product weight: 15G Product size: 6.2x5.4x1.3cm/2.44x2.13x0.51in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Bluetooth-compatible headset 1 x Charging cable 1 x Instruction 1.LED Power Display: Stay informed on the go with our bone conduction earphone's intuitive LED power display, which indicates your charge level at a glance, preventing unexpected power shortages and keeping your tunes playing without interruption. 2.Immersive Sound Quality: Dive into a world of unparalleled clarity with our business wireless headphones, boasting an 8-core driver system for a pristine audio journey that mirrors the energy of a live concert atmosphere from your selected melodies. 3.Stable & Swift Bluetooth-Compatible 5.2 : Experience uninterrupted audio with our running sports earphones, integrating the latest Bluetooth-Compatible 5.2 technology for stable connections and low power consumption, ensuring your music and calls stay consistent, even during the most vigorous activities. 4.Ergonomic Comfort-Fit: Our hanging ear type headset is crafted for maximum comfort without adding weight, featuring ergonomically designed buds and hooks that adapt perfectly to the unique shape of your ears, ensuring a snug fit for all-day wear. 5.HD Noise-Canceling Calls: Conduct calls with the clarity of a face-to-face conversation using our handsfree headset, equipped with superior noise-canceling technology that minimizes background noise during sports, video calls, or any situation where clear communication is key.