Functions: support Bluetooth connection, hands-free call, series connection, TF card, USB, FM radio, audio output; Bluetooth version: Bluetooth 5.0; Speaker specification:full-frequency speaker 52mm 4 ohm 5W * 1; Transmission distance: straight-line distance: 15 meters; Battery capacity: new dual-protection 1200mah of product A (no false capacity, supplied by the factory, stable and reliable quality, ensuring the product's battery cycle service life, standby time and use safety); There may be slight color difference due to different factory batches, which not affect the use Input: DC 5V 0.5-2A; Charging time: 3-4 hours; Play time: 6-8 hours (medium volume); Product size: 16.5 x 4.0 x 5.8cm Colour:A: black+blue Material:plastic Package Contents: 1 x Radio 1 x 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.