Duo wireless earbuds and wireless charging pad - buds charge in compact case; Power/Technology: Power/Technology: Earbud battery: Rechargeable Lithium Polymer battery in each bud: 37V; Capacity: 35 mAh; Input: 5V/60 mA; Transmit range: 10m (30 ft); Wireless V 41; Charging Case Battery: Rechargeable Lithium Ion battery: 37V; Capacity: 300 mAh; Input:5V/250 mA (Micro USB), 4W (Wireless); Wireless Charger: Input: 5V/15A; Wireless Output: 5V/08A, 5W; Conversion efficiency: ?63% Wireless Charging Distance: 4mm (015”); Wireless charging mat feature is designed to charge most remote wireless charging enabled smartphones (including iPhones 11, 11 Pro, 12 and 12 Pro) and operates at lower temperature than most traditional chargers Check your device specs for compatibility prior to purchase; Charging Case must be charged prior to first use; Charge time varies by device, minimum 2 hours; Approx Playback time for earbuds: 25 hours • Note: Most cases must be removed from phone for wireless charging to work; Includes instructions and USB to Micro USB charging cable; FCC Approved; Product Size: 4 l x 1.375 w x 0.625 d; Shipping available to contiguous U.S. addresses and Canada via Ground only.  Cannot ship via Air, Internationally or to Alaska, Hawaii, Puerto Rico and any other small U.S. island territory.