Color: BlackFeatures: STRONG BASS AND HIGH PERFORMANCE - Receive a perfectly clear sound with Hi-Fi headphones from EdifierBLUETOOTH V4.0 - Experience low latency and high performance audio processing sound from Edifier with Bluetooth 4.0STRONG SIGNAL AND BATTERY LIFE - Perfect for commuting; Bluetooth boasts a 10-hour battery life and 10-foot rangeLIGHTWEIGHT FOR LONG USE - Listen to your audio all day long with these Bluetooth headphones you'll barely notice them there12-MONTH USA WARRANTYPublisher: EdifierDetails: Low Latency True Bluetooth Audio Edifier's headphones go wireless! Using technology from Bluetooth 4.0 Edifier is able to give you the wireless sound you deserve. Bluetooth offers the freedom you never had before. Get away from the restrictive wires for when you want mobility while listening to music podcasts or audio books. Lightweight and Comfortable Key factors in determining the quality in a set of headphones is the level of comfort and build quality that the headphones offer. The W570BT are have a lightweight build however does not feel cheap. The on-ear design is the most agreeable fit you will perform without yielding sound quality. Spend a greater amount of the day listening to your sound while never removing your headphones. Durability for Days Bewildered with headphones that are shabby and aren't endeavored to last? The W570BT headphones may have a lightweight feel but are more durable than most competitors. The wired line of the W570BT is made of materials that are tough flexible and pull safe. These headphones are especially crafted for anything you may hurl at it. Specifications FREQUENCY RESPONSEï¼20Hzï½20kHz IMPEDANCEï¼32Ω SOUND PRESSURE LEVELï¼106dB DRIVER UNIT: 30mm ATTACHMENT: micro-USB cable WEIGHTï¼0.092kgUPC: 875674002304EAN: 0875674002304