Item Type: Bluetooth Clip Receiver Material: ABS+PC Color: As Picture Shown Weight: Approx. 53.0g/1.9oz Bluetooth Distance: About 10m Bluetooth Version: BL5.0 + EDR BT Protocol: AVRCP \\ A2DP \\ HFP \\ HSP Output Connector: 3.0mm Audio Noise Rate:> 90dB Battery Type: Rechargeable Li-ion Battery (included) Battery Capacity: 200mAh Working Time: About 8 hours Charging Time: About 1.5 hours Features: Support Bluetooth hands-free call function, support memory card playback, support phone functions such as answering, hanging up, rejecting, and calling back How to use: 1. Power-on connection 2. Use the terminal device to search for Bluetooth for SR11 and connect, 3. Support playing music in memory card, with memory function. 4. Long press the two volume keys at the same time to cycle through the Bluetooth mode and memory card mode Long press the M button for 2 seconds, switch the machine In the incoming call state, short press the M key to answer the call long press the M key for 1 second to reject the call In the playback state, short press the M button, the playback is paused In Bluetooth mode, double-click the M button to recall1Supports 2 playback modes, can listen to music at will, and also supports memory card playback and high?definition calls in bluetooth mode. 2Turn on the phones Bluetooth, search for the device name, and click to pair, after success, the phone can automatically pair with the adapter later, can connect 2 device. 3Suitable for home or car audio systems and wired headsets, support answer, hanging up, reject, call back and other phone functions. 4Can connect to any A/V receiver with a standard 3.5mm jack and any active speakers, fit for iPhone/iPad/iPod Touch/phones/Android devices. 5Support CVC call noise reduction technology, built?in power isolation module, separate noise current, just like face?to?face conversation.1 x&nbspBluetooth&nbspClip Receiver 1 x Charging Cable 1 x Manual