Recording Function: Built-in microphone to record radio stations and external sounds Radio Function: Search stations automatically, search stations manually, save stations manually, delete stations manually Other Functions: alarm clock and sleep function, playing TF card, connecting Bluetooth Specification: 1. Model No.: -221 2. Frequency range: FM: 87-108MHz AM: 520-1710KHz(AM step 10Khz for US) FM: 76-108MHz AM: 522-1710KHz (AM step 9Khz for JP/Europe) Note: In FM mode, press FM/AM key and music button at the same time, You can switch 9 KHz or 10 KHz according to the area) version: European version Power Supply: Dc 5V or Built-in 2000 mAh battery Overall dimensions: W120 x H69 x D27mm Material: plastic colour: grey Package Contents: 1 x Bluetooth Radio Speaker 1 x USB Cable 1 x English instructions 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.