1、 Support TF / USB / FM / Bluetooth / AUX hands-free FM radio mode. 2、 With FM function, you can automatically search for radio stations. 3、 International advanced wireless chip and circuit design technology, compatible with all wireless devices. Through the auxiliary line input, you can directly connect external devices, such as tablets / TVs / mobile phones. 4、 It uses high-fidelity speakers to ensure clear sound. 5、 Support TF card and USB card. Support Bluetooth mode connection. 1 * Bluetooth speaker 1 * Data cable 1 * User manual Product name: A11 Type: Bluetooth speaker Connection method: Bluetooth connection Frequency response range: 60Hz-15KHz Signal to noise ratio: ≥70db Power supply: built-in lithium battery Channel: 2.1 Playing time: 8 hours Extended storage: 4GB Bluetooth protocol: 4.0 Effective distance: 15 meters TF card maximum support: 32G Operation mode: button Applicable people: General Play format: MP3, WMA Shell material: plastic Whether to support APP: Yes Supported format: U disk Speaker adjustment method: button Is there a radio function: Yes Product weight: 0.14 (KG) Product size: 62 * 62 * 73.7mm/ 2.44 * 2.44 * 2.90inch(Approx.) Speaker size: 52mm / 36 external magnet Output power: 5W Battery model: 502030 Battery capacity: 300M / AH Support function: TF / USB / FM / Bluetooth / AUX Product color: black, pink, blue, green