HUAWEI Mini Speaker, Emerald Green (Japan Authorized Distributor) Mini Speaker/Emerald Green (CM510)

This product is a wireless device that complies with the technical standards of the Radio Law. This applies only to products sold and shipped by Amazon.co.jp. Frequency Band: 2402-2480MHz (79 frequencies spaced 1000kHz) 2.5mW/MHz Dimensions: 50mm W x 50mm H x 56.3mm D Weight: Approx. 101g Charging Time: Approx. 2.5 hours Music Playback Time: Approx. 4 hours Bluetooth: Version 4.2 Speaker Unit: 40mm Diameter Full-Range Speaker Total Output: 3W Waterproof Rating: IP54