Features: Bone conduction speaker for a personalized sound experience, place it on various surfaces such as plastic storage boxes, glass, or wooden desks to create different sound effects. Equipped with an advanced BT 5.0 chip for seamless BT connectivity and TWS-enabled. Delivers quality sound with up to 115db powerful volume, enhanced bass, and clear treble. Built-in 400mAh lithium battery allows for up to 6 hours of playtime after just 1 hour of charging. Compact and mini size makes it easy to carry and a great decorative piece. Functions as an FM radio, enabling music playback, phone calls, and conference calls, as well as an enhanced audio experience for gaming, videos, or movies. Specifications: Material: aluminum alloy Color: black Qty: 1 pack BT version: BT5.0 Audio format: MP3, AC3, AAC, WAV... Output power: 3W Frequency response: 20-20kHz SNR: 70dB Power supply: 400mAh lithium battery, Type-C charge DC5V/0.4A Package size: 70*70*50mm/2.76*2.76*1.97in (1 pack) Package weight: 85g/3oz (1 pack) Packing List: 1* BT speaker 1* Lanyard 1* Suction Cup 1* Adhesive 1* Type-C charging cable