Item Type: Inflatable SofaProduct Material: Nylon Fabric, TPUBattery Type: Polymers Lithium BatteryBattery Capacity: 2000MAH (Shipping With Built In Battery)Automatic Inflatable Pump ParametersOperating Voltage: 4.2VOperating Current: 3.9ACharging Time: 5HInflation Time: 40 MinutesInflatable Times: 8 Times 1Automatic Inflatable Pump: The working voltage of the automatic inflatable pump of the inflatable sofa is 4.2V, the working current is 3.9A, the charging time is 5H, the inflating time is 40 minutes, and the inflatable times are 8 times. 2One Button Automatic Inflation: Our outdoor inflatable sofa can be easily operated by a single user, with one button inflation, saving energy and effort. 3Emergency Charging Function: This automatic inflatable sofa can be input and output, which can charge phones and other devices when needed. 4Nylon Fabric and PU material: Automatic inflatable sofa is made of nylon fabric and TPU material, which has good tear resistance, puncture resistance, good sealing, no air leakage and no deformation. 5Multiple Use Scenarios: Our automatic inflatable sofa is suitable for a variety of environments, without worrying about being punctured and scratched by the ground, suitable for office lunch break, bedroom, living room, travel, picnic.