1. Pocket audio, compact design, easy to carry, set wireless Bluetooth transmission, MP3 player, flashlight lighting functions together.2. All-metal shell design, flashlight button control, hidden TF card and USB charging port, 360-degree rotating volume control integrated into one, fully functional3. Horn specifications: diameter 36mm4. Output power: 4 ohms x 3W5. Frequency response: 80Hz-18KHz6. Sensitivity: 100db+/-5db7. Bluetooth implementation standard: V3.08. Bluetooth communication protocol: support Advanced Audio Distribution Profile (A2DP) Ver1.29. Support remote control mode (AVRCP) Ver1.010. Bluetooth connection range: about 10 meters11. Support TF card: 32G12. Power supply mode: built-in lithium battery 3.7V 2200mAh13. Charging time: 2 hours14. Talk time: 8 hours15. Bluetooth music playback time: 5-8 hours16. TF card music playback time: 8 hours17. Interface: charging power supply Micro USB-DC5V18. Product size: diameter 43mm, height 138mm19. Product net weight: 180g

http://olla.gr/bt201-small-steel-gun-flashlight-bluetooth-speaker-outdoor-waterproof-metal-small-speaker-blue/