Features: Built-in DSP independent amplifier, HIFI sound quality, super anti-interference. Support Bluetooth hands-free call function. Can receive mobile phones or other audio with Bluetooth-enabled electronic devices. With an embedded echo-cancellation microphone for clear sound. Can be used for all audio input to support the car audio or home audio. Great for using at home, office, etc. Descriptions: Support Bluetooth A2DP stereo. Removable clip design, car portable dual-use. Full metal body and small size design to meet all kinds of applications Specifications: Model: BT810 Frequency: 2.4GHz Bluetooth version: 4.2+EDR Battery: 200mAh(built-in) Charging time: 2 hours Playing time: 8 hours Standby time: 100 days Material: aluminum Size: 40x15mm Color: champagne Package included: 1 x BT810 3.5mm Bluetooth Receiver 1 x USB Cable 1 x Manual Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!