Product Information: Description: The upgraded Bluetooth-compatible 5.0 chip and compact design make this product more stable, with low power consumption, a barrier-free and effective transmission distance of 10 meters, and it's lightweight and convenient to carry, so you can enjoy beautiful music anytime, anywhere. Strong compatibility, suitable for Bluetooth-compatible connection playback on mobile phones, tablets, and laptops, with no delay in calls, so you can easily answer any call while listening to music. This product is made of plastic and electronic components, making it more robust and durable. The length of the speaker is 7.5 centimeters, and the width of the speaker is 7.5 centimeters. The height of the speaker is 3 centimeters. It is suitable for cooking, parties, gardening, garages, campfires, hiking, cycling, or the beach, whatever you need it for. Product Name: Bluetooth-compatible Speaker Material: plastic, electronic components Battery: built-in 900MAH battery (included) Charging time: 4 hours Output power: 3W Working voltage: DC 5V Playback time: 5-10 hours Bluetooth version: V5.0 Signal-to-noise ratio: greater than 70db Playback format: MP3, WMA Supported formats: TF card Resolution: greater than 90DB Dimensions: 7.5 cm x 7.5 cm x 3 cm/2.95 inches x 2.95 inches x 1.18 inches Notes: Due to differences in lighting and screen settings, the color of the item may differ slightly from the picture. Due to differences in manual measurements, please allow minor dimensional differences. The upgraded Bluetooth-compatible 5.0 chip and the compact design make this product more stable, with low power consumption, a barrier-free and effective transmission distance of 10 meters, and it's lightweight and convenient to carry, so you can enjoy beautiful music anytime, anywhere. Strong compatibility, suitable for Bluetooth-compatible connection playback on mobile phones, tablets, and laptops, with no delay in calls, so you can easily answer any call while listening to music. This product is made of plastic and electronic components, making it more robust and durable. The speaker is 7.5 cm long and 7.5 cm wide. The height of the speaker is 3 centimeters. It is suitable for cooking, parties, gardening, garages, campfires, hiking, cycling, or the beach, whatever you need it for.