AEC BT-205 Portable Wireless Bluetooth Speaker Stereo Music Loudspeaker Built-in Microphone, Support TF Card Features: 1. High-definition dual audio track with 10W large speakers will bring you rich bass and loud treble music. Answer hands-free calls with one touch. Do n’t miss any calls while enjoying your music 2. Through CNC technology, leather back, silicone cover, aluminum frame, aluminum buckle, etc. reflect its appearance 3. Large capacity battery to meet all your needs. When it needs to be charged, it can power your mobile device 4. Not afraid of raindrops, but not immersed in water, very suitable for mountaineering, camping, outdoor sports 5. Small size, can be placed in a pocket, anywhere. TF card supports storage capacity up to 32GB Product Specifications: 1. Product model: BT205 2. Bluetooth version: V5.0 3. Sensitivity: -38 dB 4. Speaker size: φ36mm 5. Speaker impedance: 4 ohms 6. Output power: 5W x 2 7. Frequency response: 180Hz-18KHz 8. Bluetooth distance: 10m (obstacle-free) 9. Battery capacity: 2500mAh 10. Charging time: about 4 hours, DC 5V 1000mA (please extend the charging time for the first charge) 11. Play time: 12 hours (moderate volume) 12. Product materials: silicone, ABS plastic, aluminum mesh, leather 13. Product size: about 14.5 x 6.7 x 1.5cm 14. Product weight: about 212g Packing list: Bluetooth speaker x 1 Charging cable x 1 Chinese and English manual x 1