TG-113 Bluetooth Speaker Volume synchronization, the default volume is 50% of the maximum, Advanced Bluetooth decode chip, support to connected with the all Bluetooth equipment., Voice calling-number, Automatically re-connect, automatically into pairing mode when failed, Low power prompt. Portable Wireless Speaker Echo and noise cancelling features for calls Easy to operate; with volume and play/pause buttons for convenience Advanced wirelss audio decoder chip,support all wireless devices connected., support Fm radio, you can search area stations directly Soft, clear and dynamic sound all levels clear, Support line in audio input,provide you with computer speakers can be connected to mobile phone, tablet computer and tv wireless pairing playing music in built mic for calling Support with all kind of Smartphones . 1 x Bluetooth Speaker 1 x USB Charging Cable 1 x Manual. Splashproof Speaker BT: 3.0+EDR Support: L2CAP/A2DP(AVCTP/AVDTP/AVRCP), can recieve AUDIO signal and control the AUDIO device Support HSP/HFP (Handsfree profile), Built-in Mic for hands free phone call.