Specification: Item Type: Speaker_x000D_Condition: 100% brand new_x000D_Color: Black_x000D_Material: Silicone_x000D_Output Power: 3W_x000D_Transmission Distance: Approx. 10m/33ft_x000D_Loudspeaker Size: 40mm 4ohm_x000D_Frequency Response: 60hz-18khz_x000D_Charging Voltage: 5V_x000D_Battery Capacity: 3.7V 400mAh_x000D_Battery Type: Lithium battery 14500_x000D_Waterproof: IPX4_x000D_Size: Approx. 45x85mm/1.8x3.3in Features: 1Imported material, integrated design of the whole body without screw, highly sealed for preventing damage caused by water. 2Adopt internal magnetic loudspeaker with all-frequency, bringing shocking bass, sweet middle frequency, and clear treble. 3Small size and lightweight, easy to carry, and you can enjoy it anytime and anywhere. 4IPX4 professional waterproof, perfect construction, ensuring the stability and high performance. 5Built-in rechargeable lithium battery with large capacity, meeting your daily needs. PackageList: 1 x Speaker1 x USB Charging Cable