Specifications: Bluetooth connection, strong signal, brings super bass stereo sound effect. Support TF card insert to play the music. Portable design for shoulder or handle carrying, suitable for hiking, travel, climbing, etc.. Item Name: Bluetooth Speaker Material: Plastic Shell Power Supply: Built-in 1500mAh Battery Play Time: 6 Hours Play Format: MP3 Input Power: 5W Each Horn Horn: 3 Frequency Response Range: 100Hz - 20KHz Signal-to-Noise Ratio: Greater than 75dB Expansion Memory: 32GB Bluetooth Protocol: 4.0 Interface Type: USB Effective Distance: 10m/393.7" (Approx.) Support Card: TF Card (Not Included) Functions: Bluetooth, TF Card Reader, AUX Playback, FM Radio Features: Wireless, Portable, Heavy Bass Music Size: 38cm x 16cm x 15cm/14.96" x 6.30" x 5.91" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bluetooth Speaker 1 x Charging Cable 1 x Strap 1 x User Manual