Features: Bone conduction speaker for a unique sound experience. Place it on various surfaces such as plastic storage boxes or wooden desks to enjoy different sound effects. Equipped with advanced BT 5.0 chip for stable Bluetooth connection and TWS functionality. Delivers high-quality sound with up to 115dB output, rich bass, and clear treble. Built-in 400mAh lithium battery provides up to 6 hours of playback after a full 1-hour charge. Compact and portable design, easy to carry and suitable for everyday use. Functions as an FM radio, enables hands-free calling, and enhances audio for gaming, videos, and movies. Specifications: Material: Aluminum alloy Color: Black Quantity: 1 pack Bluetooth version: 5.0 Audio formats: MP3, AC3, AAC, WAV Output power: 3W Frequency response: 20-20kHz Signal-to-noise ratio (SNR): 70dB Power supply: 400mAh lithium battery, Type-C charging (DC 5V/0.4A) Package dimensions: 70 x 70 x 50mm (2.76 x 2.76 x 1.97 in) per pack Package weight: 85g (3 oz) per pack Packing List: 1 x Bluetooth speaker 1 x Lanyard 1 x Suction cup 1 x Adhesive pad 1 x Type-C charging cable 3 x Magnetic fixing pieces