Bluetooth connection:Answer incoming calls or voice calls hands-free under Bluetooth connection, and automatically resume music playback after hanging up. High Fidelity Recording:Whether it's to record the key points of knowledge in the classroom or as a memo for your life, just long-press the record button and the player record those sounds clearly and accurately. Timed Playback:Support max 120 minutes playback, you can freely set the playback duration of the player, when the set time is up, the playback end automatically. Digital Song Selection:0 to 9 numeric keys, support numeric input to directly order songs or select the radio frequency you want to listen to. Multiple playback modes:Support Bluetooth playback, TF card playback, U disk playback, 3.5mm wired headphone listening, to meet your different playback needs. Product Name:Portable Receiving frequency:87-108MHz Playback mode: Bluetooth, TF card, U disk, FM radio Speaker category: full-range speaker + bass diaphragm Output power: 5W Function support: recording/loop playback/timed playback Timing period: 30.60.90.120 minutes Battery capacity: 1500mAh Note: There may be a slight color difference due to different batches, which does not affect the use Colour: As Shown Material: plastic Package Contents: 1x FM Radio 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.