Features: Support Micro SD or TF Cards / Line-In for MP3 Songs Compatible with Audio Output Devices Works as Loudspeaker Via Audio Cable With 3.5mm Audio Interface 40mm Full Rare-earth High Magnetic Speaker Clear High-pitched Sound Pure Alto Sound, Vigorous Bass Built-in Lithium Battery Built-in Microphone Supports Handsfree Function Ideal for Use at the Office, Home, and Outdoor Bluetooth Connectivity: Includes Bluetooth Wireless Audio Control Receiver Works with All of Today's Latest Devices (Smartphone, Tablet, Laptop, Computer, etc.) Bluetooth Network Name: ‘PYLEUSA' Bluetooth Version: 5.0 Wireless Range: 32.8' ft. What's in the Box: Bluetooth Mini Speaker Micro-USB Cable 3.5mm AUX Cable Technical Specs: Construction Material: ABS Play Time: 4~6 hours at 70% Volume Level, 12~14 hours at 70% Volume Level Speaker Unit: 5W/4Ω Power Cable Length: 2.13 ft. Battery Type: Lithium Battery, Rechargeable Impedance: 4Ohms Frequency response: 70Hz-18kHz Battery Capacity: 3.7V/1200mAh S/N ratio: ≥70dB Charging Time: 2~3 hours Working Time: 4~6 hours (70% volume level) Charging Current: 5V/0.5A Product Dimensions (L x W x H): 5.65'' x 3.73'' x 1.8'' -inches Sold as: 1 Weight: 0.88 lbs.