ABS Plastic and Aluminum multi-function tech accessory is both a wireless speaker and wireless charger. Wireless charging mat feature is designed to charge most remote wireless charging enabled smartphones (including iPhones 8, 8+ and X) and operates at lower temperature than most traditional chargers. Check your device specs for compatibility prior to purchase. Power/Technology: Rechargeable Lithium-Ion battery: 3.7V; Capacity 400 mAh; Input: DC 5V; Output: 5V/0.8A (Wireless); Output/Power: 3Wx1 (Speaker); Wireless charging distance: 6mm (0.23"); Frequency response: 20-20kHz; Wireless V5.0 Must be charged prior to first use. Charge time varies by device. Instructions and charging cable included.