General description This Portable Compatible Bone Conduction Speaker offers a unique sound experience by turning any hollow core into a speaker. It is one of the smallest and most versatile bone conduction speakers available, allowing you to enjoy high-quality sound in various environments. Technical specifications Capacity: 400mAh Wireless version: 5.0 Supported profiles: A2DP, HFP Bone Conduction transducer power: 3Watt Frequency range: 120Hz-16kHz Built-in high sensitive microphone Charging port: USB-C (not compatible with fast charge) Dimensions: Measurement allowed error is +/- 1-3cm Usage Listen to music, podcasts, and phone conversations Participate in conference calls Play games and enjoy game sound effects Use as an FM radio to listen to music and podcasts Other information Material: Metal Color: Silver Package Contents: 1 x Bone Conduction Speaker, 1 x Charging cable Note: Light reflection and different displays may cause the color of the item in the picture to differ