Bluetooth connection status down the power, instantly transformed into HD hands-free communication devices, clear and stable sound quality, accurate sound pickup and amplification, so that the other party's voice as if in the ear When in Bluetooth connection, you can download and store the song you are playing to TF card with one key, so you can save your favorite music without the tedious transfer steps Built-in 40mm external magnetic speakers plus 16-core sub-magnetic speakers, bringing a majestic and heavy listening experience Support Bluetooth playback, TF card playback, 3.5mm headphone playback, to meet your listening needs in scenes Built-in 1000 mAh high-capacity lithium battery, energy-saving and efficient, a full charge can enjoy continuous hours of music feast Name: Portable Bluetooth audio player Version:Bluetooth 5.3 Transmission distance: ≥ 15 meters Function support:Bluetooth music, hands-free phone, Bluetooth photo Sound unit: 40mm external magnet + 16 core sub-magnet Frequency: 150HZ- 18KHz Output power: 3W Impedance: 4 ohms Playback mode: Bluetooth, TF card Function Support: Lyrics Display, Record, Record Delete, Clock Mode Battery: Lithium polymer battery Capacity: 1000mAh Charging voltage: DC 5V Charging cable: TYPE-C fast charging cable (The product appearance and printed words depending on the batch, but this does not affect use) Color: A:Black Material: Metal Package Contents: 1 x Bluetooth Speaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.