Specifications Product name: Small steel cannon audio 2 Product configuration: Xiaogangpao Audio 2-Dazzling Black [High-end 5W Bluetooth Version] With packaging: 402G Color box size: 135*90*102MM Product material: ABS Connection method: Bluetooth connection Charging method: USB charging Rated power: 5W Rated voltage: 5V Frequency response range: 100Hz-20KHz Signal-to-noise ratio: 75dB Bluetooth version: 5.0 Effective distance: 10m Additional functions: card insertion, anti-fall, call function Packaging list Small steel cannon audio*1 Charging cable*1 Straps*1