Best Seller Outdoor Portable Wireless Bluetooth Speaker, Portable Mini Bluetooth Speaker With BT,USB,AUX,TF,TWS,phone funcaton,lights,Sound switching fucation BT,USB,AUX,TF,TWS,phone funcaton,lights,Sound switching parameter specification Buletooth standard V5.3 Buletooth chip type BP1048B1 Buletooth audio decoder MP3.WMA.SBC.WAV.FLAC.APE Bluetooth protocol Bluetooth calling profile(HSP) AG not support HSV1.2 Bluetooth handsfree profile(HFP) AG V1.8 HF V1.8 Buletooth music(A2DP) source V1.3.2 sink V1.3.2 Buletooth music remote control(AVRCP) controller V1.6.2 target V1.6.2 Buletooth advanced music(APTX) / Bluetooth parameter Transmission frequency 2.402GHz-2.480GHz Transmit power ≤9dB Antenna type PCB Transmission range(barrier free) >10Meter Battery life Standby time(connection status) approx18H Talk time approx12H Music playback time(maximum volume) 4500MAabout2H middle :6H Shutdown current 5uA Standby current (connection status) about150MA-350MA Music playback power consumption 150MA-3A Talk consumption 400MA-600MA Alarm voltage 3.5V Rated output power 8W*2 maximum output power 10W*2 Horn specifications 66mm 4Ω 8W Product specification L250*W114*H143MM sensitivity ≥93db Signal-to-noise ratio ≥89db Shutdown voltage 3.4V diaphragm 55 T2.0MM*2 steel sheet 39g battery Battery type 18650*3 Battery capacity 3.7V 4500 mAh Nominal voltage 5V Charging current 1A Charging time limit 4500about5±0.5H Full voltage:4.2V Discharge voltage:3.4V Pilot lamp RGB Charging mode DC 5V Bare weight 1256g Packing Details Individual Pakcage: Color box & Blister tray Contents in Color box: 1 Speaker; 1 Manual; 1 Charging cable; 1 AUX cable;1 Carrying strip