Bewinner Bluetooth Headset Wireless Headset

Specification: Item Type: Wireless Bluetooth Headset Material: ABS Product dimensions: approx. 10 x 5 x 2 cm / 3.9 x 2.0 x 0.8 inches. Wireless frequency: 2.402GHZ-2.480GHZ Battery capacity: 100MA Charging Voltage/Current: 5V/1A Battery type: polymer battery Packing List: 1 x Hanging Bluetooth Headset 1 x USB interface. 1 x user manual (English language not guaranteed). Note: 1. Shipped with built-in battery.2. Manual measurement, please allow slight error.