1.Loud volume, shocking the audience: using diaphragm speakers, 3W power, the volume exceeds 120 decibels. 2.High-power speakers, full-frequency shock: large-diameter woofer, full-frequency shock, three-dimensional sound surrounds. Loud treble, clear midrange and powerful bass. 3.Small size, flexible and portable, convenient to travel with one hand. 4.Built-in 1000mAh large-capacity lithium battery improves battery life. 5.Wide range of wireless Bluetooth-compatible connection, stable transmission: Bluetooth-compatible 5.0 version, up to 10 meters stable connection range. Receiving range: FM: 64-108MHZ MW: 520-1710KHZ SW: 4.750-21.850MHZ WB: 162.400-162.550MHZ Receive Sensitivity: FM: ≤8dB MW: 3uV/M SW: 40dBuV Quiescent current: ≤60uA Maximum current: ≤720MA Speaker: 40mm/4Ω/3W The number of radio mode storage stations: 114 can be stored (FM, 32 medium wave, 50 short wave) Bluetooth-compatible version: VER 5.0 Bluetooth-compatible receiving distance: ≤10 meters Minimum operating voltage: 3.4V External input voltage: DC: DC.5v Lithium battery BL5C lithium battery: 3.7v 1000mAh TF card playback format: support MP3 & WAV & WMA format Colour:Khaki/Yellow Material:ABS Package Contents: 1 x HRD-701 Portable Multimedia Music Player 1 x Lanyard 1 x USB Charging Cable 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.