KST-900 Bluetooth Stereo Headset, For iPad, iPhone, Galaxy, Huawei, Xiaomi, LG, HTC and Other Smart Phones Type-Wireless Presenter Smooth rounded edges effectively protect

Smooth rounded edges effectively protect the screen and lens

and can Scaler Down the high defintion HDMI signal into CVBS output

General Compatible with Lenovo:  G40

With blue LED light

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KST-900 Bluetooth Stereo Headset, For iPad, iPhone, Galaxy, Huawei, Xiaomi, LG, HTC and Other Smart Phones Type-Wireless Presenter Smooth rounded edges effectively protect1. Brand new 2. Ear pads to keep your ears comfortable 3. Adjustable headband for different needs 3. Compatible with most Bluetooth devices, tablets and smart phones etc Specification: General Model KST 900 Types Headphone (no mic) Bluetooth Version V3. 0 + EDR Protocol A2DP, HSP, HFP, AVRCP Impedance 32ohm Transmission Distance Up to 10m Distortion <=0. 5% at 1kHz Power 30mW Battery Battery Types Li ion Battery Capacity 300mAh Charging Time 2 3 hours